Which one of the following is not a characteristic of particles of a matter?
A)
The particles of a matter are very small
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B)
The particles of a matter have space between them
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C)
The particles of a matter are in stationary state
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D)
The particles of a matter attract each other
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E)
None of these
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What is homogeneous mixture?
A)
A mixture having uniform composition throughout its mass
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B)
A mixture having all the particles of same size
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C)
A mixture having all the particles of equal mass
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D)
A mixture having non-uniform composition throughout its mass
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E)
None of these
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Which one of the following diseases spread through direct contact?
A)
Small pox
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B)
Syphilis
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C)
Gonorrhoea
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D)
All of these
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E)
None of these
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Who of the following is correct? Jack: Soil is formed by weathering or disintegration of parent rock. Cody: Water is regarded as universal solvent. Peter: The landmass of the earth is called lithosphere
A)
Jack and Cody
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B)
Cody and Peter
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C)
Jack and Peter
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D)
All of them
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E)
None of these
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Which one of the following is not a characteristic of a true solution?
A)
A true solution is a homogeneous mixture of two or more substances
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B)
Solute particles can be separated by filtration
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C)
A true solution is transparent to light
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D)
A true solution does not scatter light
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E)
None of these
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An element X is tetravalent and another element Y is divalent. The compound formed by these two elements will be:
A)
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B)
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C)
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D)
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E)
None of these
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Which one of the following is not an element of phloem?
A)
Sieve tube
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B)
Companion cell
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C)
Phloem parenchyma
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D)
Tracheids
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E)
None of these
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Which letter in the following figure represent dendrite?
A)
L
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B)
M
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C)
N
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D)
O
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E)
None of these
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Rutherford's gold foil experiment showed that most of the a-particles passed through the gold foil without any deflection. It indicates that:
A)
The nucleus is concentrated at centre
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B)
The nucleus carries positive charge
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C)
There is lot of empty space in atom
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D)
The nucleus carries most of the mass
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E)
None of these
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The rate of evaporation of a liquid decreases with:
A)
The increase of the surface area of the liquid
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B)
The increase of the temperature of the liquid
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C)
The increase in humidity
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D)
The increase in wind speed
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E)
None of these
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Which one of the following statements is not correct regarding the Bohr's model of the atom?
A)
Electrons revolves around the nucleus in circular orbits
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B)
Electron loses energy when it jumps from an orbit of lower energy to the orbit of higher energy
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C)
Each orbit has a definite energy
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D)
As long as an electron remains in a particular orbit it does not lose energy
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E)
None of these
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The velocity-time graph of a particle is not a straight line. Its acceleration is:
A)
Zero
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B)
constant
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C)
Negative
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D)
variable
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E)
None of these
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When a bus starts moving suddenly from the rest, the passengers sitting inside the bus move backwards. This is an example of:
A)
Newton's first law of motion
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B)
Newton's second law of motion
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C)
Newton's third law of motion
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D)
All of these
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E)
None of these
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Why do gases have high compressibility?
A)
Because particles of gases are very small
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B)
Because particles of gases have large empty space between them
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C)
Because particles of gases are in constant motion
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D)
Because particles of gases attract each other with a very strong force
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E)
None of these
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Which one of the following statements is true about the compound?
A)
A compound shows properties of its constituents
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B)
A compound may be homogeneous or heterogeneous
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C)
Constituents of a compound can be separated by physical methods
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D)
A compound has fixed melting and boiling point
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E)
None of these
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When an object is thrown up, the force of gravity ________.
A)
Acts in the direction opposite to the direction of motion of the object
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B)
Acts in the same direction as the direction of motion of the object
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C)
Becomes zero at the highest point
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D)
Increases as the object rises up
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E)
None of these
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How is the kinetic energy of a moving car is affected if its mass is tripled keeping the velocity constant?
A)
The kinetic energy of the car will become half
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B)
The kinetic energy of the car will get doubled
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C)
The kinetic energy of the car will get tripled
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D)
The kinetic energy of the car will become zero
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E)
None of these
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The pitch of a sound depends on:
A)
Intensity
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B)
frequency
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C)
Waveform
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D)
quality
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E)
None of these
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The figure given below is of an animal cell. Which part of the cell is also known as power house?
A)
P
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B)
Q
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C)
R
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D)
S
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E)
None of these
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The organisms belonging to kingdom ______are single-celled prokaryotes, the oldest and the simplest microorganisms.
A)
Monera
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B)
Protista
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C)
Fungi
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D)
Plantae
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E)
None of these
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Which one of the following diseases is caused by worms?
A)
Filariasis
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B)
Cholera
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C)
Tuberculosis
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D)
measles
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E)
None of these
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Which one of the following is not a characteristic of division thallophyta?
A)
The body of the plant is not well- differentiated into roots, stems and leaves
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B)
Vascular system is present
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C)
The thallophytes mainly include algae
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D)
Thallophytes are predominantly aquatic
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E)
None of these
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Name the cell organelle shown below.
A)
Mitochondria
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B)
Golgi body
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C)
Chloroplast
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D)
Ribosome
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E)
None of these
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Human body is:
A)
Asymmetrical
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B)
Radially symmetrical
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C)
Bilaterally symmetrical
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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 criteria is kept in mind while selecting crops for mixed cropping?
A)
Nutrients requirements of the crops
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B)
Water requirements of the crops
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C)
Duration of crops
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D)
All of these
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E)
None of these
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The process of conversion of inorganic nitrogen compounds into organic compounds that becomes a part of living organisms is called:
A)
Nitrogen fixation
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B)
Nitrification
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C)
Nitrogen assimilation
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D)
Denitrification
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E)
None of these
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White leghorn is a exotic breed of:
A)
Buffalo
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B)
Fish
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C)
Poultry bird
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D)
Honey bee
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E)
None of these
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A solution is prepared by dissolving 25 g of glucose in 500 g of water. Calculate the concentration of the solution.
A)
4.76%
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B)
6.5%
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C)
9%
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D)
11.2%
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E)
None of these
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A 0.24 g sample of a compound of oxygen and boron was found by analysis to contain 0.096 g of boron and 0.144 g of oxygen. Calculate the percentage composition of the compound by mass:
A)
Boron= 40%, Oxygen = 60%
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B)
Boron = 60%, Oxygen = 40%
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C)
Boron = 30%, Oxygen = 70%
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D)
Boron = 70%, Oxygen = 30%
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E)
None of these
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What is the percentage of sulphur in sulphuric acid?
A)
30.55%
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B)
32.65%
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C)
33.63%
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D)
59.32%
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E)
None of these
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What is the acceleration produced by a force of 15 N exerted on an object of mass 4 kg?
A)
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B)
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C)
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D)
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E)
None of these
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What will be the potential energy of a body of mass 4 kg kept at a height of 10 m above the ground?
A)
200 J
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B)
400 J
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C)
600 J
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D)
800 J
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E)
None of these
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A particle is taken to a height R above the earth's surface, where R is the radius of the earth. The acceleration due to gravity there is: (Mass of the earth
, radius of the earth = 6400 km)
A)
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B)
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C)
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D)
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E)
None of these
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A force acts on a particle of mass 200 g. The velocity of the particle changes from
in 2.5 s. assuming the force to be constant, find its magnitude.
A)
2 N
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B)
4 N
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C)
6 N
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D)
8 N
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E)
None of these
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A ball is gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of
with what velocity will it strike the ground?
A)
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B)
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C)
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D)
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E)
None of these
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The speed of a car weighing 1500 kg increases from
. Calculate the change in its momentum.
A)
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B)
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C)
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D)
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E)
None of these
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A player kicks a ball of mass 250 g placed at the center of a field. The ball leaves his foot with a speed of . Find the work done by the player on the ball.
A)
2 J
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B)
4 J
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C)
8 J
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D)
16 J
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E)
None of these
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A sample of ammonia
weighs 2 g. What mass of sulphur dioxide
contains the same number of molecules as are in 2 g of ammonia?
A)
7.529 g
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B)
3.125 g
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C)
4.425 g
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D)
6.628 g
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E)
None of these
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The speed-time graph of a particle moving along a straight path has been shown below. Find the distance covered by the particle in the time interval 0 to 40 s.
A)
50 m
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B)
100 m
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C)
150 m
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D)
300 m
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E)
None of these
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A body vibrating with a time period of 2 milliseconds produces a wave travelling in a medium with a velocity of
. Find the wavelength of the wave.
A)
2 m
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B)
1.5 m
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C)
2.5 m
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D)
3 m
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E)
None of these
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