question_answer 1) A long spring is stretched by 2 cm. Its potential energy is U. If the spring is stretched by 10 cm, the potential energy stored in it will be:
A)
\[\frac{U}{25}\]
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B)
\[\frac{U}{5}\]
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C)
\[3U\]
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D)
\[25U\]
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question_answer 2) The coefficient of restitution e for a perfectly elastic collision is:
A)
1
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B)
zero
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C)
infinite
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D)
\[-1\]
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question_answer 3) A soap bubble is given negative charge. Then its radius:
A)
decreases
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B)
increases
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C)
remains unchanged
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D)
nothing can be said because sufficient information is not available
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question_answer 4) Source of energy in sun is caused by :
A)
fusion of heavy nuclei
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B)
fission of heavy nuclei
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C)
fusion of hydrogen nuclei
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D)
fission of hydrogen nuclei
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question_answer 5) A particle moves along a circular path under the action of a force. The work done by the force is:
A)
positive and non-zero
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B)
negative and non-zero
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C)
zero
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D)
none of the above
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question_answer 6) A particle is moving in a circle with uniform speed. It has constant:
A)
velocity
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B)
acceleration
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C)
kinetic energy
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D)
displacement
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question_answer 7) If \[|\vec{A}+\vec{B}|=|\vec{A}-\vec{B}|,A\]and B are finite then
A)
\[\overset{\to }{\mathop{A}}\,\text{ }is\text{ }parallel\text{ }to\text{ }\overset{\to }{\mathop{B}}\,\]
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B)
\[\overset{\to }{\mathop{A}}\,\text{ }is\text{ }anti-parallel\text{ }to\text{ }\overset{\to }{\mathop{B}}\,\]
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C)
\[\overset{\to }{\mathop{A}}\,\text{ }and\,\,\overset{\to }{\mathop{B}}\,\,are\,\,equal\,\,in\,\,magnitude\]
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D)
\[\overset{\to }{\mathop{A}}\,\text{ }and\overset{\to }{\mathop{B}}\,are\,\,mutually\,\,perpendicular\]
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question_answer 8) A number of small drops of mercury adiabatically coalesce, to form a single drop. The temperature of the drop:
A)
increases
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B)
remains same
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C)
decreases
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D)
depend on size
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question_answer 9) Light waves can be polarised as they are :
A)
transverse
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B)
of high frequency
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C)
longitudinal
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D)
reflected
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question_answer 10) In which process the speed of transfer of heat is maximum?
A)
Conduction
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B)
Convection
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C)
Radiation
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D)
In all these heat is transferred with the same speed
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question_answer 11) Youngs experiment establishes that:
A)
light consists of waves
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B)
light consists of particles
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C)
light is neither of particles nor waves
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D)
light consists of particles and waves both
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question_answer 12) A heating coil is labelled 100 W, 220V. The coil is cut into two equal pieces and the two pieces are joined in parallel to the same source. The energy now liberated per second is:
A)
400 J
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B)
25 J
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C)
50 J
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D)
200J
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question_answer 13) Bending of light rays around the edges of an obstacle is known as:
A)
refraction
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B)
polarisation
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C)
diffraction
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D)
reflection
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question_answer 14) A convex lens of focal length 40cm is in contact with a concave lens of focal length 25 cm. The power of the combination of the two lenses is:
A)
\[-1.5D\]
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B)
\[~-6.5\text{ }D\]
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C)
6.5 D
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D)
6.67 D
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question_answer 15) Particle A moves in S-N direction and particle B moves in W-E direction. Then the velocity-of L particle A with respect to B is:
A)
N-W direction
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B)
N-E direction
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C)
S-W direction
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D)
S-E direction
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question_answer 16) Weightlessness experienced while orbiting the earth in space ships is the result of:
A)
inertia
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B)
acceleration
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C)
zero gravity
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D)
centre of gravity
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question_answer 17) If one mole of a monoatomic gas \[(\gamma =5/3)\]is mixed with one mole of a diatomic gas \[(\gamma =7/5),\] the value of \[\gamma \]for the mixture is:
A)
1.40
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B)
1.50
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C)
1.53
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D)
3.07
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question_answer 18) Which of the following statements is wrong?
A)
Sound travels in straight line
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B)
Sound travels as waves
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C)
Sound is a form of energy
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D)
Sound travels faster in vacuum than in air
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question_answer 19) If momentum of a certain body is increased by 50%, then increases in the KE of the body will be:
A)
25%
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B)
50%
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C)
100%
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D)
125%
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question_answer 20) A uniform chain of length L and mass M is lying on a smooth table and one-third of its length is hanging vertically down over the edge of the table, if g is the acceleration due to gravity the work required to pull the hanging part of the chain on the table is:
A)
\[MgL\]
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B)
\[\frac{1}{3}MgL\]
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C)
\[\frac{1}{9}MgL\]
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D)
\[\frac{1}{18}MgL\]
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question_answer 21)
In the arrangement shown in the figure for vertical oscillations of the mass \[m,\]the period is:
A)
\[T=2\pi \sqrt{\frac{m}{{{k}_{1}}+{{k}_{2}}}}\]
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B)
\[T=2\pi \sqrt{\frac{{{k}_{1}}+{{k}_{2}}}{m}}\]
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C)
\[T=2\pi \sqrt{\frac{m({{k}_{1}}+{{k}_{2}})}{{{k}_{1}}+{{k}_{2}}}}\]
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D)
\[T=2\pi \sqrt{\frac{mg}{{{k}_{1}}+{{k}_{2}}}}\]
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question_answer 22) A person completes half of its journey with speed\[{{v}_{1}}\]and rest half with speed \[{{v}_{2}}.\]The average speed of the person is:
A)
\[v=\frac{1}{2}({{v}_{1}}+{{v}_{2}})\]
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B)
\[v=\frac{2{{v}_{1}}{{v}_{2}}}{{{v}_{1}}+{{v}_{2}}}\]
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C)
\[v=\frac{{{v}_{1}}{{v}_{2}}}{{{v}_{1}}+{{v}_{2}}}\]
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D)
\[v=\sqrt{{{v}_{1}}{{v}_{2}}}\]
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question_answer 23) A particle moves along a straight line such that its displacement at any time t is given by \[s={{t}^{3}}-3{{t}^{2}}+2m.\]The displacement when the acceleration bec6mes zero is:
A)
zero
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B)
2 m
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C)
3m
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D)
-2m
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question_answer 24) \[[M{{L}^{2}}{{T}^{-3}}]\]represents the dimensions of:
A)
pressure
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B)
energy
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C)
power
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D)
force
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question_answer 25) The time period of a simple pendulum in a lift descending with constant acceleration g is:
A)
\[T=2\pi \sqrt{\frac{l}{8}}\]
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B)
\[T=2\pi \sqrt{\frac{l}{2g}}\]
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C)
zero
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D)
infinite
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question_answer 26) A transverse wave is given by \[y=A\sin 2\pi \left( \frac{t}{T}-\frac{x}{\lambda } \right).\] The maximum particle velocity is equal to 4 times the wave velocity, when:
A)
\[\lambda =2\pi \,A\]
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B)
\[\lambda =\frac{1}{2}\pi A\]
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C)
\[\lambda =\pi A\]
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D)
\[\lambda =\frac{1}{4}\pi A\]
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question_answer 27) A tuning fork gives 4 beats with 50 cm length of a sonometer wire. If the length of the wire is shortened by I cm the number of beats is still the same. The frequency of the fork is:
A)
396 Hz
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B)
400 Hz
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C)
404 Hz
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D)
384 Hz
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question_answer 28) Electron volt is a unit of:
A)
potential
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B)
charge
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C)
power
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D)
energy
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question_answer 29) Light of frequency,\[v\]is incident on a certain photoelectric substance with threshold frequency\[{{v}_{0}}.\]The work function for the substance is:
A)
\[hv\]
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B)
\[h{{v}_{0}}\]
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C)
\[h(v-{{v}_{0}})\]
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D)
\[h(v+{{v}_{0}})\]
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question_answer 30) For principal quantum number\[n=3,\]the possible values of orbital quantum number \[l\]are:
A)
1, 2, 3
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B)
0, 1, 2, 3
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C)
0, 1, 2
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D)
\[-1,0,+1\]
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question_answer 31) Certain radioactive substance reduces to 25% of its value in 16 days. Its half-life is:
A)
32 days
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B)
8 days
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C)
64 days
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D)
28 days
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question_answer 32) Penetrating power of X-rays does not depend on:
A)
wavelength
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B)
energy
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C)
potential difference
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D)
current in the filament
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question_answer 33) The ratio of resistance for forward to reverse bias of \[p-n\]junction is:
A)
\[{{10}^{2}}:1\]
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B)
\[{{10}^{-2}}:1\]
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C)
\[1:{{10}^{-4}}\]
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D)
\[1:{{10}^{4}}\]
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question_answer 34) If a current flows through an infinitely long straight wire, the magnetic field produced at a point 1m away from it, is:
A)
\[2\times {{10}^{-3}}T\]
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B)
\[2\times {{10}^{-1}}T\]
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C)
\[2\times {{10}^{-1}}T\]
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D)
\[2\pi \times {{10}^{-6}}T\]
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question_answer 35)
Two circular discs A and B with equal radii are blackened. They are heated to same temperature and are cooled under identical conditions. What inference do you draw from their cooling curves?
A)
A and B have same specific heats
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B)
Specific heat of A is less
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C)
Specific heat of B is less
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D)
Nothing can be said
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question_answer 36) When a charged particle, travelling with unifrom speed enters a uniform magnetic field perpendicularly then. Its kinetic energy:
A)
remains constant
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B)
increases
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C)
decreases
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D)
becomes zero
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question_answer 37) A circular coil of radius 4 cm and number of turns 20 carries a current of 3 A. It is placed in a magnetic field of 0.5 T. The magnetic dipole moment of the coil is:
A)
\[\text{0}\text{.60 A}{{\text{m}}^{\text{2}}}\]
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B)
\[~0.45\text{ A}{{\text{m}}^{2}}\]
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C)
\[\text{ }\!\!~\!\!\text{ 0}\text{.30 A}{{\text{m}}^{\text{2}}}\]
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D)
\[~0.15A{{m}^{2}}\]
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question_answer 38) In a circuit 5% of total current passes through a galvanometer. If resistance of the galvanometer is G, then value of the shunt is:
A)
19 G
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B)
20 G
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C)
G/20
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D)
G/19
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question_answer 39) In a moving coil galvanometer, deflection \[\text{o }\!\!|\!\!\text{ }\] and current I flowing through it are related by:
A)
\[I\propto \tan \text{o }\!\!|\!\!\text{ }\]
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B)
\[I\propto \text{o }\!\!|\!\!\text{ }\]
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C)
\[I\propto \text{o}{{\text{ }\!\!|\!\!\text{ }}^{2}}\]
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D)
\[I\propto 1/\text{o }\!\!|\!\!\text{ }\]
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question_answer 40) A solenoid of length\[l\]metre has self-inductance L henry. If number of turns are doubled, its self inductance:
A)
remains same
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B)
becomes 2 L henry
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C)
becomes 4 L henry
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D)
becomes\[\frac{L}{\sqrt{2}}\] henry
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question_answer 41) The voltage of an AC supply varies with time (t) as \[V=120\sin 100\,\pi t\,\cos 100\,\pi t.\]The maximum voltage and frequency respectively are:
A)
\[120V,\text{ }100\text{ }Hz\]
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B)
\[120/\sqrt{2}\,V,100\,Hz\]
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C)
\[60\,V,\,200\,Hz\]
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D)
\[60\,V,\,100\,Hz\]
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question_answer 42) Two point charges of\[+\,3\mu C\] and \[-\,3\mu C\]are at a distance \[2\times {{10}^{-3}}\,m\]apart from each other. The electric field at a distance of 0.6 m from the dipole in broadside-on position is:
A)
\[150\,N{{C}^{-1}}\]
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B)
\[250\,N{{C}^{-1}}\]
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C)
\[60\,N{{C}^{-1}}\]
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D)
\[35\,N{{C}^{-1}}\]
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question_answer 43) Two parallel large thin metal sheets have equal surface charge densities \[(\sigma =26.4\times {{10}^{-12}}C/{{m}^{2}})\]of opposite signs. The electric field between these sheets is:
A)
\[1.5\,N/C\]
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B)
\[1.5\times {{10}^{-10}}N/C\]
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C)
\[3\,N/C\]
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D)
\[3\times {{10}^{-10}}N/C\]
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question_answer 44) N identical spherical drops are charged to the same potential V. They combine to form a bigger drop. The potential of the big drop will be:
A)
\[V{{N}^{1/3}}\]
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B)
\[V{{N}^{2/3}}\]
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C)
\[V\]
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D)
\[VN\]
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question_answer 45) Three condensers of capacitance 2uF each are connected in series. The resultant capacitance is:
A)
\[6\mu F\]
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B)
\[3/2\,\mu F\]
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C)
\[2/3\,\mu F\]
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D)
\[5\,\mu F\]
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question_answer 46) Two electric bulbs rated \[{{P}_{1}}\]watt, V volt and \[{{P}_{2}}\]watt, V volt are connected in parallel and V volt supply is applied to them. The total power will be:
A)
\[{{P}_{1}}+{{P}_{2}}\]
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B)
\[\sqrt{{{P}_{1}}{{P}_{2}}}\]
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C)
\[\frac{{{P}_{1}}{{P}_{2}}}{{{P}_{1}}+{{P}_{2}}}\]
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D)
\[\frac{{{P}_{1}}+{{P}_{2}}}{{{P}_{1}}{{P}_{2}}}\]
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question_answer 47) A hole is in the bottom of the tank having water. If total pressure at the bottom is 3 atm (\[(1\,atm={{10}^{5}}\,N{{m}^{-2}}),\]1 then velocity of water flowing from hole is:
A)
\[\sqrt{400}\,m{{s}^{-1}}\]
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B)
\[\sqrt{600}\,m{{s}^{-1}}\]
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C)
\[\sqrt{60}\,m{{s}^{-1}}\]
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D)
\[\sqrt{40}\,m{{s}^{-1}}\]
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question_answer 48) A fluid of volume 1 L is subjected to a pressure change of \[{{10}^{7}}N/{{m}^{2}}.\] As a result its volume changes by \[0.4\,c{{m}^{3}}.\] The bulk modulus of the fluid is:
A)
\[2.5\times {{10}^{10}}\,N/{{m}^{2}}\]
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B)
\[2.5\times {{10}^{11}}\,N/{{m}^{2}}\]
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C)
\[2.5\times {{10}^{9}}\,N/{{m}^{2}}\]
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D)
\[2.5\times {{10}^{15}}\,N/{{m}^{2}}\]
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question_answer 49) Stationary waves are so called because in them:
A)
the particles of the medium are not disturbed at all
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B)
the particles of the medium do not execute SHM
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C)
Particles do not correspond flow of energy along the wire
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D)
the interference effect cannot be observed
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question_answer 50) If the degrees of freedom of the molecules of a gas are n, the ratio of its two specific heats \[({{C}_{P}}+{{C}_{V}})\]will be:
A)
\[1+\frac{2}{n}\]
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B)
\[1-\frac{2}{n}\]
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C)
\[1+\frac{1}{n}\]
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D)
\[2-\frac{1}{n}\]
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question_answer 51) In a radioactive decay:
A)
\[\alpha \] then\[\beta \] and then\[\gamma \]emitted
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B)
\[\alpha \] or \[\beta \] and then\[\gamma \]emitted
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C)
\[\alpha \]and\[\beta \] and \[\gamma \]emitted simultaneously
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D)
\[\alpha \]and\[\beta \]emitted simultaneously
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question_answer 52) The work function of a metal is 1 eV. If\[\text{3000}\,\overset{\text{o}}{\mathop{\text{A}}}\,\] wavelength light is incident, the value of stopping voltage is:
A)
1V
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B)
\[\text{3}\text{.75}\,\text{V}\]
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C)
3.2 V
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D)
0.75 V
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question_answer 53) Equation for a real gas is \[\left( P+\frac{a}{{{V}^{2}}} \right)(V-b)=RT\] Where\[P=\]pressure, \[V=\]volume, a, b and R constants, dimensional formula of a is:
A)
\[{{L}^{6}}\]
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B)
\[{{M}^{1}}{{L}^{-1}}{{T}^{-2}}\]
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C)
\[{{M}^{1}}{{L}^{5}}{{T}^{-2}}\]
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D)
\[{{L}^{3}}\]
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question_answer 54) A monoatomic ideal gas is compressed to its 1/8 volume adiabatically at \[17{{\,}^{o}}C.\] Temperature after compression will tie:
A)
\[34{{\,}^{o}}C\]
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B)
\[17{{\,}^{o}}C\]
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C)
\[136{{\,}^{o}}C\]
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D)
\[887{{\,}^{o}}C\]
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question_answer 55) Which quantity remains constant in adiabatic process?
A)
Work
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B)
Heat
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C)
Temperature
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D)
All of these
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question_answer 56) Which formula is incorrect for root mea square velocity?
A)
\[\sqrt{\frac{2RT}{M}}\]
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B)
\[\sqrt{\frac{3PV}{M}}\]
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C)
\[\sqrt{\frac{3d}{P}}\]
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D)
\[\sqrt{\frac{2KE}{M}}\]
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question_answer 57) If the number of molecules of hydrogen is double to that of oxygen, at the same temperature, the ratio of their average KE pa molecule is:
A)
\[1:1\]
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B)
\[2:3\]
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C)
\[1:2\]
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D)
\[1:4\]
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question_answer 58) A liquid boils at that temperature at which the pressure of saturated vapour is:
A)
more than atmospheric pressure
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B)
double to atmospheric pressure
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C)
equal to atmospheric pressure
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D)
less than atmospheric pressure
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question_answer 59) What is the value of \[\frac{PV}{T}\] for a 1 mote of gas?
A)
\[4.2\times {{10}^{7}}cal/K\]
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B)
\[4.2\,cal/K\]
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C)
\[8.31\,cal/K\]
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D)
\[2\,cal/K\]
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question_answer 60) If a proton totally converts into energy, the value of energy will be:
A)
190 MeV
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B)
931 MeV
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C)
93.1 MeV
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D)
931 J
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question_answer 61) Experimental verification of matter waves was done by:
A)
de-Broglie
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B)
Rutherford
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C)
Bohr
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D)
Davisson and Germer
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question_answer 62) In the following nuclear reaction \[_{2}H{{e}^{3}}+{{\,}_{Z}}{{X}^{a}}\xrightarrow{{}}{{\,}_{Z+1}}{{Y}^{a+2}}+Q.\]What is Q?
A)
Neutron
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B)
Proton
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C)
Positron
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D)
Electron
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question_answer 63) For the reaction \[{{\,}_{1}}{{H}^{2}}+{{\,}_{1}}{{H}^{2}}\xrightarrow{{}}{{\,}_{2}}H{{e}^{4}}+v+\text{Energy,}\] what is the required condition?
A)
High temperature and pressure
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B)
High temperature and low pressure
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C)
Low temperature and high pressure
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D)
High temperature only
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question_answer 64) Work function of photoelectric metal is 3.13 eV. Threshold frequency is:
A)
\[4\times {{10}^{11}}\,Hz\]
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B)
\[5\times {{10}^{14}}\,Hz\]
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C)
\[8\times {{10}^{15}}\,Hz\]
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D)
\[8\times {{10}^{10}}\,Hz\]
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question_answer 65) Nitro group of nitrobenzene is:
A)
\[o-\]directing
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B)
\[m-\] direcdng
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C)
\[p-\]directing
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D)
o, and p directing
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question_answer 66) In which compound the number of 3° carbon is maximum:
A)
2, 5 dimethyl hexane
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B)
2, 3, 4-trimethyl pentane
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C)
2, 2, 4, 4-tetramethyl pentane
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D)
2, 2, 3, trimethyl pentane
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question_answer 67) The pH of a solution of concentration few less than 1 N NaOH:
A)
between 13 and 14
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B)
between 12 and 13
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C)
between 0 and 1
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D)
between 1 and 2
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question_answer 68) Dichlorocarbene is:
A)
a neutral divalent species
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B)
a carbonation
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C)
a carbanion
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D)
a free radical
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question_answer 69) The geometry of the hybrid orbital, which contains 20% s-character is:
A)
octahedral
done
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B)
tetrahedral
done
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C)
trigonal bipyramidal
done
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D)
square planar
done
clear
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question_answer 70) Which test is not ideal to distinguish 2-butanol and 1-propanol?
A)
Hydrogenation
done
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B)
lodoform test
done
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C)
Lucas test
done
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D)
Oxidation test
done
clear
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question_answer 71) In the reaction of\[C{{H}_{2}}=C{{H}_{2}}\]and HBr initial addition occurs of:
A)
indefinite
done
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B)
\[{{H}^{+}}+B{{r}^{-}}\]both at one time
done
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C)
\[{{H}^{+}}\]
done
clear
D)
\[B{{r}^{-}}\]
done
clear
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question_answer 72) The hydrocarbon formed by electrolysis of sodium propionate:
A)
\[C{{H}_{3}}CH=C{{H}_{2}}\]
done
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B)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\]
done
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C)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{3}}\]
done
clear
D)
\[C{{H}_{3}}-C{{H}_{3}}\]
done
clear
View Answer play_arrow
question_answer 73) 0.1M\[C{{H}_{3}}COOH\]is 1.3% ionised. The dissociation constant of it will be:
A)
\[1.69\times {{10}^{-5}}\]
done
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B)
\[1.69\times {{10}^{-6}}\]
done
clear
C)
\[1.69\times {{10}^{-4}}\]
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 74) Which of the following give dye test?
A)
Aniline
done
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B)
Methylamine
done
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C)
Diphenylamine
done
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D)
Ethylamine
done
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question_answer 75) When ethanamide is heated with NaOH and \[B{{r}_{2}}\]the compound formed is:
A)
\[C{{H}_{3}}CON{{H}_{2}}\]
done
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B)
\[{{C}_{2}}{{H}_{5}}NC\]
done
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C)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}\]
done
clear
D)
\[C{{H}_{3}}N{{H}_{2}}\]
done
clear
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question_answer 76) The chemical formula of potash alum is \[{{K}_{2}}S{{O}_{4}}.A{{l}_{2}}{{(S{{O}_{4}})}_{3}}x{{H}_{2}}O,\]here \[x\] is:
A)
7
done
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B)
12
done
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C)
6
done
clear
D)
24
done
clear
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question_answer 77) Brass is an alloy of:
A)
\[Cu+Zn+Fe\]
done
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B)
\[Cu+Zn+Ni\]
done
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C)
\[Cu+Zn+Sn\]
done
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D)
\[Cu+Zn\]
done
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View Answer play_arrow
question_answer 78) The electronic configuration of \[F{{e}_{26}}\]is [Ar]:
A)
\[~3{{d}^{8}}4{{s}^{2}}\]
done
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B)
\[~3{{d}^{7}}\text{ }4{{s}^{2}}\]
done
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C)
\[~3{{d}^{6}}4{{s}^{2}}\]
done
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D)
\[~3{{d}^{5}}4{{s}^{2}}\]
done
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question_answer 79) The rate constant of forward reaction is \[2.38\times {{10}^{-4}}\]and the rate constant of backward reaction is \[4.76\times {{10}^{-5}}.\] The equilibrium constant for the reaction will be:
A)
5
done
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B)
\[5\times {{10}^{-2}}\]
done
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C)
\[2\times {{10}^{-4}}\]
done
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D)
none of these
done
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question_answer 80) The element with electronic configuration \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{6}},4{{s}^{2}}\]shows same property as:
A)
Mo
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B)
Rb
done
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C)
Ca
done
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D)
Sr
done
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question_answer 81) How much volume of 0.4 M NaOH is required to neutralise completely 200 mL \[\text{0}\text{.5}\,\text{M}\,{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]solution?
A)
600 mL
done
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B)
300 mL
done
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C)
500 mL
done
clear
D)
200 Ml
done
clear
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question_answer 82) The formula of acetaldehyde semicarbazone:
A)
\[C{{H}_{3}}-CH=NNHCONHC{{H}_{3}}\]
done
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B)
\[C{{H}_{3}}-CH=N-OH\]
done
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C)
\[C{{H}_{3}}CH=N-NHCON{{H}_{2}}\]
done
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D)
\[C{{H}_{3}}-CH=N-NHCONH-CON{{H}_{2}}\]
done
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question_answer 83) One compound reacts with chloroform in presence of KOH and produces a bad smell (nause odour) compound. The compound formed is:
A)
\[C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}\]
done
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B)
\[{{C}_{6}}{{H}_{5}}CN\]
done
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C)
\[C{{H}_{3}}C{{H}_{2}}NC\]
done
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D)
\[{{C}_{2}}{{H}_{5}}CN\]
done
clear
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question_answer 84) Phenol, chloroform and caustic potash are heated. The compound formed is:
A)
salicylic acid
done
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B)
\[p-\] hydroxy benzaldehyde
done
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C)
\[m-\] hydroxy benzaldehyde
done
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D)
salicylaldehyde
done
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View Answer play_arrow
question_answer 85) \[A+NaOH\xrightarrow{{}}C{{H}_{3}}OH+HCOONa\]is the reaction, compound A is:
A)
HCN
done
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B)
HCHO
done
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C)
\[C{{H}_{3}}CN\]
done
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D)
\[C{{H}_{3}}Cl\]
done
clear
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question_answer 86) The compound obtained by the reaction of acetic anhydride and ammonia is:
A)
\[C{{H}_{3}}COON{{H}_{4}}\]
done
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B)
\[~C{{H}_{3}}CN\]
done
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C)
\[~C{{H}_{3}}CONHC{{H}_{3}}\]
done
clear
D)
\[~C{{H}_{3}}CON{{H}_{2}}\]
done
clear
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question_answer 87) Metal which does not react with aqueous solution of copper sulphate is:
A)
Pb
done
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B)
Ag
done
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C)
Zn
done
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D)
Fe
done
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question_answer 88) When aniline react with acetic anhydride the product formed is:
A)
\[p-\]aminobenzoic acid
done
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B)
\[m-\]aminobenzoic acid
done
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C)
acetanilide
done
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D)
\[o-\]aminobenzoic acid
done
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View Answer play_arrow
question_answer 89) \[5SO_{2}^{-}+2MnO_{4}^{-}+6{{H}^{+}}\xrightarrow{{}}5SO_{4}^{2-}\]\[+\,2M{{n}^{2+}}+2{{H}_{2}}O\] the oxidation number of Mn changes from:
A)
\[+\,14\,\text{to}+4\]
done
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B)
\[+\,6\,\text{to}+2\]
done
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C)
\[-7\,\text{to}-2\]
done
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D)
\[+7\,\text{to}+2\]
done
clear
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question_answer 90) Which has highest ionisation potential?
A)
N
done
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B)
O
done
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C)
\[{{O}^{+}}\]
done
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D)
Na
done
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question_answer 91) Formic acid and acetic acid may be distinguished by the reaction with:
A)
sodium
done
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B)
2, 4-dinitrophenyl hydrazine
done
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C)
litmus paper
done
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D)
Tollens reagent
done
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question_answer 92) Maximum melting point is of:
A)
\[~MgC{{l}_{2}}\]
done
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B)
\[~BaC{{l}_{2}}~\]
done
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C)
\[~CaC{{l}_{2}}\]
done
clear
D)
\[~BeC{{l}_{2}}\]
done
clear
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question_answer 93) The process requiring the absorption of energy is:
A)
\[F\xrightarrow{{}}{{F}^{-}}\]
done
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B)
\[Cl-C{{l}^{-}}\]
done
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C)
\[O\xrightarrow{{}}{{O}^{2-}}\]
done
clear
D)
\[H\xrightarrow{{}}{{H}^{-}}\]
done
clear
View Answer play_arrow
question_answer 94) The number of coordinate bond in a molecule of \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\text{:}\]
A)
4
done
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B)
3
done
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C)
2
done
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D)
1
done
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question_answer 95) Camallite is:
A)
\[KCl\]
done
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B)
\[LiAl{{(Si{{O}_{3}})}_{2}}\]
done
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C)
\[MgC{{l}_{2}}.6{{H}_{2}}O\]
done
clear
D)
\[KCl.MgC{{l}_{2}}.6{{H}_{2}}O\]
done
clear
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question_answer 96) A piece of magnesium ribbon was heated to redness in an atmosphere of nitrogen and on cooling water was added. The gas evolved was:
A)
ammonia
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B)
hydrogen
done
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C)
nitrogen
done
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D)
oxygen
done
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question_answer 97) Which of the following halides is least stable and doubtful existence?
A)
\[C{{l}_{4}}\]
done
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B)
\[Sn{{l}_{4}}\]
done
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C)
\[Ge{{l}_{4}}\]
done
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D)
\[Pb{{l}_{4}}\]
done
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question_answer 98) Lithopone is a mixture of:
A)
\[ZnS\]and \[{{K}_{2}}S{{O}_{4}}\]
done
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B)
\[CaC{{l}_{2}}\]and \[C{{a}_{3}}{{F}_{2}}\]
done
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C)
\[Ca{{C}_{2}}\]and \[C{{a}_{3}}{{N}_{2}}\]
done
clear
D)
\[ZnS+BaS{{O}_{4}}\]
done
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question_answer 99) Iodine is liberated from KI solution when treated with:
A)
\[ZnS{{O}_{4}}\]
done
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B)
\[CuS{{O}_{4}}\]
done
clear
C)
\[NiS{{O}_{4}}\]
done
clear
D)
\[FeS{{O}_{4}}\]
done
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question_answer 100) Chlorine acts as a bleaching agent only in the presence of:
A)
dry air
done
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B)
sun light
done
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C)
moisture
done
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D)
pure oxygen
done
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question_answer 101) Photoperiodic response of red and far-red wavelength is mediated by:
A)
phytochrome
done
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B)
cytochrome
done
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C)
ferredoxin
done
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D)
plastocyanin
done
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question_answer 102) Tissue that contains fat globules is known as:
A)
duraepithelium
done
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B)
adipose tissue
done
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C)
nepiepithelium
done
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D)
none of these
done
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question_answer 103) Which of the following inactivates the enzyme by changing its shape?
A)
Competitive inhibitor
done
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B)
Allosteric enzyme
done
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C)
Co-enzyme
done
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D)
All of the above
done
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question_answer 104) Freshly hatched larva of housefly is called :
A)
caterpillar
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B)
maggot
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C)
nymph
done
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D)
grub
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question_answer 105) In human foetus, the heart begins to beat at developmental age of:
A)
4th week
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B)
3rd week
done
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C)
6th week
done
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D)
8th week
done
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question_answer 106) Enzymes that catalyse endergonic synthesis, coupled with exergonic hydrolysis of ATP are:
A)
ligases
done
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B)
isomerase
done
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C)
lyases
done
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D)
transferases
done
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question_answer 107) Gas exchange in the gills of a teleost fish is enhanced by having the blood flow in direction opposite to the direction of water flow, a process known as:
A)
counter current exchange
done
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B)
ventilation
done
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C)
facilitated diffusion
done
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D)
active respiration
done
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question_answer 108) Parkinsons disease is associated with:
A)
midbrain
done
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B)
thalamus
done
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C)
hypbthalamus
done
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D)
cerebrum
done
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question_answer 109) The branch of science dealing with the study of congenitally deformed foetus is called:
A)
teratology
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B)
gerontology
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C)
nidology
done
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D)
none of the above
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question_answer 110) Sub-kingdom-Parazoa includes:
A)
Protozoa
done
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B)
Porifera
done
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C)
Metazoa
done
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D)
None of these
done
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question_answer 111) Tears contain which enzyme that act as antiseptic:
A)
muramidase
done
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B)
zymozyme
done
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C)
phagozyme
done
clear
D)
none of these
done
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question_answer 112) Organisms that are unable to tolerate wide variations of salt concentrations in the environment are termed:
A)
stenohaline
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B)
euryhaline
done
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C)
enohaline
done
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D)
none of these
done
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question_answer 113) Non-essential amino acids, are synthesized in the human body during:
A)
protein catabolism
done
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B)
protein anabolism
done
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C)
both [a] and [b]
done
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D)
none of the above
done
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View Answer play_arrow
question_answer 114) Sharpeys perforating fibres are related with:
A)
contraction of muscles
done
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B)
relaxation of muscles
done
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C)
fixing of teeth
done
clear
D)
none of the above
done
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View Answer play_arrow
question_answer 115) Free martin is an example of:
A)
hormonal controlled unlike sexed twins
done
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B)
sex reversal by gene
done
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C)
environmental control of sex
done
clear
D)
none of the above
done
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question_answer 116) Which of the following curve shows, how oxygen is loaded and unloaded due to partial pressure?
A)
\[{{\text{O}}_{\text{2}}}\]curve
done
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B)
\[C{{O}_{2}}\] curve
done
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C)
Bohrs curve
done
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D)
\[{{\text{O}}_{\text{2}}}\] dissociation curve
done
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question_answer 117) The polio virus enters the human body through:
A)
mosquito bite
done
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B)
tick bite
done
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C)
saliva and secretions from the nose
done
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D)
contaminated food and water
done
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question_answer 118) When there is no change in muscle length during contraction, it is called:
A)
isometric
done
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B)
isotonic
done
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C)
isostasis
done
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D)
refractory period
done
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question_answer 119) Which of the following organ has papillary muscles?
A)
Eyes
done
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B)
Brain
done
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C)
Heart
done
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D)
Mammary glands
done
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question_answer 120) The external and internal parts of cerebrospinal fluid are connected through The roof of:
A)
epithalamus
done
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B)
filum terminate
done
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C)
cerebral ventricles
done
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D)
medula oblongata
done
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question_answer 121) Vasopressin influences:
A)
electrolyte efflux
done
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B)
nerve excitability
done
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C)
water reabsorption
done
clear
D)
all of the above
done
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question_answer 122) Widal test is performed for:
A)
malarial fever
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B)
cholera
done
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C)
typhoid fever
done
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D)
dengue fever
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question_answer 123) Pheromones when secreted upon the skin surface, its odour generally affects:
A)
skin colour
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B)
genitalia
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C)
breast
done
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D)
mutual behaviour of members of a species
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question_answer 124) Which response Amoeba shows towards current of water?
A)
Galvanotaxis
done
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B)
Rheotaxis
done
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C)
Geotaxis
done
clear
D)
Thigmotaxis
done
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question_answer 125) When more than one species of Plasmodium infect a person, it is called:
A)
quartan malaria
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B)
tertian malaria
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C)
aestivo- autumnal malaria
done
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D)
quotidian malaria
done
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question_answer 126) In which species of Paramecium, autogamy is found?
A)
Paramecium caudatum
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B)
Paramecium Aurelia
done
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C)
Paramecium furs aria
done
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D)
All of the above
done
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question_answer 127) Coats disease is related with:
A)
eye
done
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B)
liver
done
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C)
brain
done
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D)
pancreas
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question_answer 128) The study of the energy transfer and relationships between all living organisms is known as:
A)
thermodynamics
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B)
bioenergetics
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C)
kinetic energy
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D)
potential energy
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question_answer 129) The infective stage ofFasciola hepatica to sheep is
A)
sporocyst
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B)
cercaria
done
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C)
metacercaria
done
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D)
hexacanth
done
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question_answer 130) Which of the following algae shows physiological anisogamy?
A)
Spirogyra
done
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B)
Ulothrix
done
clear
C)
Volvox
done
clear
D)
All of these
done
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question_answer 131) Rate of mutation is affected by:
A)
temperature
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B)
X-rays
done
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C)
gamma and beta radiations
done
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D)
all of the above
done
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question_answer 132) A parenchymatous cell which stores ergostic materials or waste substance is:
A)
idioblast
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B)
phragmoblast
done
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C)
blastomere
done
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D)
none of these
done
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question_answer 133) Which of the following is applied for the biological control of cotton scale insect pest?
A)
Rhodalia cardinalis
done
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B)
Aleurolobus burodensis
done
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C)
Pectinophora gossypila
done
clear
D)
Both [a] and [b]
done
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question_answer 134) Which of the following is not a characteristics of the anatomy of dicotyledonous roots?
A)
Presence of little pith or absent
done
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B)
Radial vascular bundles
done
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C)
Presence of 15-20 vascular bundles
done
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D)
Secondary growth
done
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question_answer 135) The number of male prothallial cells in Selaginella plant is:
A)
one
done
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B)
two
done
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C)
twelve
done
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D)
numerous
done
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question_answer 136) Yeast is different from Penicillium and Rhizopus in being:
A)
acellular
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B)
unicellular
done
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C)
having unseptate hyphae
done
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D)
multicellular
done
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question_answer 137) In the \[{{\text{F}}_{\text{2}}}\]generation, genotypic and phenotypic ratios are identical in case of:
A)
complementary genes
done
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B)
Mendelian dihybrids
done
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C)
Mendelian monohybrids
done
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D)
incomplete dominance
done
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question_answer 138) In Funaria, the number of peristomial teeth is:
A)
8
done
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B)
16
done
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C)
32
done
clear
D)
64
done
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question_answer 139) The niche of a population is the:
A)
set of conditions that interacts
done
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B)
place where it lives
done
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C)
set of conditions and resources it uses
done
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D)
geographical area that it covers
done
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question_answer 140) Periblem is gives rise to:
A)
epidermis
done
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B)
cortex
done
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C)
pericycle
done
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D)
pith
done
clear
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question_answer 141) A test-cross distinguishes between:
A)
a homozygous dominant and the heterozygous form
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B)
a homozygous recessive and the heterozygous form
done
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C)
two homozygous form
done
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D)
two heterozygous form
done
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question_answer 142) According to modern colloidal theory, the protoplasm is a polyphasic colloidal system. This was first suggested by:
A)
Purkinje
done
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B)
Max Schultz
done
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C)
R.A. Fisher
done
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D)
E. Strasburger
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question_answer 143) The scientific name of oyster mushroom, an edible fungus is:
A)
Tolyposporium penicillarie
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B)
Colletotrichum falcatum
done
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C)
Pleurotus osteratus
done
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D)
Citromyces purpurogenum
done
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question_answer 144) Verticillaster inflorescence is the characteristic of family:
A)
Cucurbitaceae
done
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B)
Rubiaceae
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C)
Labiatae
done
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D)
Asteraceae
done
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question_answer 145) In cyathium inflorescence, the ratio between male: female flower is:
A)
one : one
done
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B)
one : many
done
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C)
many : one
done
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D)
many : many
done
clear
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question_answer 146) If a cell A with DPD 4 bars is connected to cell B, C, D whose Osmotic Pressure (OP) and Turgor Pressure (TP) are respectively 4 and 4, 10 and 5, 7 and 3 bars, the flow of water will be:
A)
B to A, C and D
done
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B)
A and D to B and C
done
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C)
C to A, B and D
done
clear
D)
A to B, C and D
done
clear
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question_answer 147) Which one of the following is not a synthetic auxin?
A)
2, 4-D
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B)
IBA
done
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C)
IPA
done
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D)
IAA
done
clear
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question_answer 148) The usual shape of growth curve is:
A)
sigmoid
done
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B)
zig-zag
done
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C)
linear
done
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D)
inverted bell-shaped
done
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question_answer 149) The beginning of plant cultivation is considered to be taken place in:
A)
Neolithic age
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B)
Paleolithic age
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C)
Mesolithic age
done
clear
D)
None of these
done
clear
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question_answer 150) Which of the following groups is not comprised of sac-fungi?
A)
Yeasts
done
clear
B)
Truffles
done
clear
C)
Mushrooms
done
clear
D)
Morels
done
clear
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