A ray of light falls on the surface of a transparent slab after travelling in air medium as shown in the picture below.
Find the angle made by the refracted ray with the normal within the slab if the refractive index of the material of the slab is \[\sqrt{2}\] and incident ray makes an angle of \[45{}^\circ \]with the normal.
A)
\[90{}^\circ \]
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B)
\[60{}^\circ \]
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C)
\[40{}^\circ \]
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D)
\[30{}^\circ \]
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E)
None of these
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When a force of 5 N is applied on a mass of \[{{m}_{1}},\]it gives acceleration \[10\,\,m{{s}^{-2}}\] and on \[{{m}_{2}}\]gives acceleration of \[20\,\,m{{s}^{-2}}\]. Find the acceleration given by both the masses if attached together.
A)
\[16.67\,\,m{{s}^{-2}}\]
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B)
\[6.67\,\,m{{s}^{-2}}\]
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C)
\[8.67\,\,m{{s}^{-2}}\]
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D)
\[26.67\,\,m{{s}^{-2}}\]
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E)
None of these
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What will be the colour of eye for a human having gene combination of Dd, if gene D which is dominant gives brown eye colour and d which is recessive gives blue eye colour?
A)
Blue
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B)
Green
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C)
Brown
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D)
Black
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E)
None of these
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The gap between two neurons is called a :
A)
Dendrite
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B)
Synapse
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C)
Axon
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D)
Impulse
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E)
None of these
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At what distance should the object from the concave lens be placed so that it forms an image at 10 cm from the lens if the concave lens has focal length of 15 cm?
A)
10 cm
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B)
30 cm
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C)
50 cm
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D)
80 cm
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E)
None of these
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What would be the resistance of a new wire when area of cross section of a wire is doubled and its length remains the same?
A)
The resistance of the new wire becomes one third of the wire.
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B)
The resistance of both the wires becomes same.
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C)
The resistance of the new wire becomes one fourth of the wire.
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D)
The resistance of the new wire becomes half of the wire.
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E)
None of these
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Consider the following statements : Statement 1: If a small piece of sodium metal is added to ethanol, hydrogen gas is released. Statement 2: If a small piece of sodium metal is added to ethanol, oxygen gas is released. Which one of the following is correct about the above statements?
A)
Statement 1 is correct and 2 is incorrect
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B)
Statement 1 is incorrect and 2 is correct
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C)
Both statements are correct
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D)
Both statements are incorrect
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E)
None of these
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According to the equation derived by Albert Einstein in 1905, rate of conversion of energy in a nuclear fission is depend on which factors?
A)
Difference in mass between original nucleus and the product nuclei multiplied by the square of speed of light in vacuum.
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B)
Difference in mass between original nucleus and the product nuclei divided by the square of speed of light in vacuum.
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C)
Product of mass of original nucleus and the product nuclei divided by the square of speed of light in vacuum.
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D)
All of these
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E)
None of these
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Which one of the following types of electricity generation model is given in the picture below?
A)
Hydroelectric
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B)
Thermoelectric
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C)
Nuclear
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D)
All of these
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E)
None of these
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Aman : Fleming's left hand rule describes the working principle of electric motor. Peter : Flemings's right hand rule describes the working principle of electric motor.
Who is correct?
A)
Aman
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B)
Peter
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C)
Both are correct
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D)
Both are incorrect
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E)
None of these
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Match the following:
Column I Column II 1. \[C+{{O}_{2}}\to C{{O}_{2}}\] [A] Decomposition reaction. 2. \[CaC{{O}_{3}}\to CaO+C{{O}_{2}}\] [B] Combination reaction. 3. \[Mg+2HCl\to MgC{{l}_{2}}+{{H}_{2}}\] [C] Double displacement reaction. 4. \[NaOH+HCl\to NaCl+{{H}_{2}}O\] [D] Displacement reaction
A)
1 - B, 2 - A, 3 - D, 4 - C
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B)
1 - C, 2 - B, 3 - D, 4 - A
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C)
1 - A, 2 - D, 3 - B, 4 - C
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D)
1 - A, 2 - B, 3 - D, 4 - C
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E)
None of these
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Which one of the following statements is true about the chemical reaction \[CuO+{{H}_{2}}\to Cu+{{H}_{2}}O\], which takes place in the presence of heat?
A)
Copper oxide is reduced to copper
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B)
Hydrogen is oxidised to water
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C)
Hydrogen is being reduced to water
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D)
Both A and B
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E)
None of these
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The pressure at which blood leaves the heart through aorta during contraction phase is called:
A)
Diastolic pressure
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B)
High blood pressure
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C)
Hypertension
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D)
Systolic pressure
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E)
None of these
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If 1 A of current passes for 5 hours through a conductor, and conductor has a resistance of 200 ohms, then the heat produced through the circuit is:
A)
1200 KJ
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B)
1000 J
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C)
800 J
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D)
3600 kJ
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E)
None of these
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What is the current through the circuit, if a resistance of 5 Ohms is connected in series with another resistance of 8 Ohms and potential difference of 26 volts is applied across the combination?
A)
2 A
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B)
3 A
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C)
4 A
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D)
5 A
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E)
None of these
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Find the equivalent resistance of the circuit given below.
A)
\[12\,\,\Omega \]
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B)
\[11.5\,\,\Omega \]
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C)
\[3.5\,\,\Omega \]
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D)
\[2.5\,\,\Omega \]
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E)
None of these
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pH scale shows the numerical values for acidic and basic solution. Which one of the following types of solution shows the pH value 7?
A)
Acidic
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B)
Basic
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C)
Neutral
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D)
All of these
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E)
None of these
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Which one of the following substance is formed when gypsum is heated at 373 K?
A)
Baking soda
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B)
Plaster of paris
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C)
Parasite
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D)
All of these
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E)
None of these
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Which one of the following types of vision defect is shown in the picture below?
A)
Myopia
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B)
Hypermetropia
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C)
Premyopia
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D)
All of these
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E)
None of these
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Which one of the following chemical equations is a balanced equation if the chemical reaction takes place between methane and oxygen?
A)
\[C{{H}_{4}}+{{O}_{2}}\to C{{O}_{2}}+{{H}_{2}}0+Heat\,\,energy\]
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B)
\[C{{H}_{4}}+2{{O}_{2}}\to C{{O}_{2}}+2{{H}_{2}}O+Heat\text{ }energy\]
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C)
\[C{{H}_{4}}+3O\to CO{{\,}_{2}}+{{H}_{2}}O+Heat\text{ }energy\]
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D)
\[C{{H}_{4}}+{{O}_{2}}\to C{{O}_{2}}+2{{H}_{2}}O+Heat\,\,energy\]
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E)
None of these
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Read the following statements : Statement 1: If the DNA copying mechanisms were to be less accurate, many of the resultant DNA copies would not be able to work with the cellular apparatus, and would die. Statement 2: If the egg in female reproductive system is not fertilized, it lives for about one day and comes out as blood and mucous roughly every month is known as menstruation. Which one of the following is correct about the above statements?
A)
Both statements are true
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B)
Both statements are false
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C)
Statement 1 is true and 2 is false
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D)
Statement 1 is false and 2 is true
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E)
None of these
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If a resistance of 30 ohms is connected in series with another resistance of 42 Ohms and potential difference of 36 volts is applied across whole circuit then the potential difference across 42 ohms resistance is:
A)
12 volts
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B)
32 volts
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C)
21 volts
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D)
18 volts
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E)
None of these
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Read the following statements: Statement 1: Amoeba breathes through their cell membranes. Statement 2: Planaria breathes through nose. Which one of the following is correct about the above statements?
A)
Statement 1 is correct and 2 is incorrect
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B)
Statement 1 is incorrect and 2 is correct
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C)
Both are correct
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D)
Both are incorrect
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E)
None of these
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Which one of the following is correct when an object is placed at a distance of 20 cm from a convex mirror of focal length 25 cm?
A)
Position of the image will be 11 cm from the pole.
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B)
The image will be formed behind the mirror
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C)
Virtual image will be formed
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D)
All of these
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E)
None of these
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Which one of the following group of periodic tables, an element belong to, if it has an atomic number of 10?
A)
1
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B)
18
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C)
16
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D)
17
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E)
None of these
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Match the following:
Column A Column B 1. Ionic bond [A] Water 2. Single covalent bond [B] Copper sulphate 3. Double covalent bond [C] Carbon tetrachloride 4. Polar covalent bond [D] Ethane
A)
1 - B, 2 - C, 3 - D, 4 - A
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B)
1 - B, 2 - A, 3 - D, 4 - C
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C)
1 - D, 2 - A, 3 - B, 4 - C
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D)
1 - D, 2 - B, 3 - A, 4 - C
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E)
None of these
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How many times does the current in the appliance change direction in 10 revolution by an AC generator is connected to an electric appliance?
A)
10 times
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B)
50 times
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C)
100 times
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D)
20 times
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E)
None of these
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A strong acid is ________.
A)
Completely ionized in water
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B)
Partially ionized in water
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C)
Not ionized in water
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D)
All of these
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E)
None of these
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At what distance an object from a concave lens having focal length of 20 cm should be placed so that the lens forms an image at the distance of 10 cm from the lens?
A)
\[-\,\,12cm\]
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B)
\[-\,\,20cm\]
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C)
\[-\,\,30cm\]
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D)
\[-\,\,25cm\]
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E)
None of these
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Which one of the following is the directional growth of movement of a plant part in response to the touch of an object?
A)
Hydrotropism
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B)
Chemotropism
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C)
Phototropism
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D)
Thigmotropism
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E)
None of these
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Plants hormones help to coordinate growth, development and responses to the environment. Which one of the following hormones is the plant's hormones?
A)
Abscise acid
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B)
Cytokinin
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C)
Gibberellin
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D)
All of these
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E)
None of these
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Some flowers do not have pistil or female part hence called male flowers similarly some flowers do not have stamens is called female flower. Which one of the following flowers is called unisexual flower?
A)
Hemp
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B)
Watermelon
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C)
Cucumber
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D)
All of these
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E)
None of these
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Which one of the following types of structure present in human body is given in the picture below?
A)
Neuron
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B)
Reflex arc
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C)
Intestine
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D)
All of these
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E)
None of these
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Sudha needs a lens of power \[-\,\,4.6\]diopters for correcting her distant vision and she needs \[+\,\,1.3\] diopters for correcting her near vision. What would be the focal length of the lens required for correcting near vision?
A)
\[+\,\,0.77\text{ }m\]
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B)
\[-\,\,0.60\,m\]
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C)
\[+\,\,0.002\text{ }m\]
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D)
\[-\,\,0.03\,m\]
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E)
None of these
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What is the normal range of systolic and diastolic blood pressure in the body of human beings?
A)
Systolic pressure is about 100 mm of Hg and diastolic pressure is 40 mm of Hg.
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B)
Systolic pressure is about 180 mm of Hg and diastolic pressure is 100 mm of Hg.
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C)
Systolic pressure is about 90 mm of Hg and diastolic pressure is 80 mm of Hg.
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D)
Systolic pressure is about 120 mm of Hg and diastolic pressure is 80 mm of Hg.
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E)
None of these
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Puneet: The left atrium relaxes when it is collected oxygen rich blood. Esha: The left atrium expands when it is collected oxygen rich blood. Who is correct?
A)
Puneet
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B)
Esha
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C)
Both are correct
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D)
Both are incorrect
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E)
None of these
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Look at the given set of apparatus carefully in the figure below.
Which one of the following is correct about the product of the above given experiment?
A)
Hydrogen gas is formed which burns with pop sound.
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B)
Nitrogen gas is formed which burns with pop sound.
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C)
Carbon dioxide gas is formed which burns without pop sound.
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D)
Methane is formed which burns with pop sound.
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E)
None of these
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Aman: Pollens when transferred from the stamen to the stigma in the same flower, it is called sell Pollination. Peter: Pollens when transferred from anther to the stamen of the different flower is called cross- Pollination. Which one of the following is correct about the above said statements?
A)
Aman is correct and Peter is incorrect
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B)
Aman is incorrect and Peter is correct
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C)
Both are correct
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D)
Both are incorrect
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E)
None of these
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In the food chain plants \[\to \] goat \[\to \] man, if 100 J of energy is available at the producer level, then the energy transferred to the man is approximately_________.
A)
10 J
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B)
1 J
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C)
0.1 J
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D)
100 J
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E)
None of these
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An electrical appliance of 0.5 kilowatt runs for 10 hours a day, the cost of electrical energy to operate for 30 days is _______ if the rate of electrical energy is Rs. 2 per kwh.
A)
Rs. 250
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B)
Rs. 300
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C)
Rs. 500
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D)
Rs. 400
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E)
None of these
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