Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.
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Question 1181: If a car starts from rest and moves with a uniform acceleration of 10ms-2 for ten seconds, the distance it covers in the last one second of its motion is
Options:
A) 95m
B) 100m
C) 500m
D) 905m
E) 1000m
Show Answer
The correct answer is A .
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Question 1182:
The binding energy of () is
[atomic mass of proton = 1.00783U, atomic mass of neutron = 1.00867U]
Options:
A) 4.033U
B) 2.017U
C) 0.033U
D) 0.330U
Show Answer
The correct answer is C .
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Question 1183: A cell whose internal resistance is 0.5Ω delivers a current of 4A to an external resistor,The loss voltage of the cell is
Options:
A) 1.250V
B) 2.000V
C) 8.000V
D) 0.125V
Show Answer
The correct answer is B .
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Question 1184: The fundamental property of a propagating wave which depends only on the source and not the medium of propagation is the?
Options:
A) wavelength
B) harmonies
C) frequency
D) velocity
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The correct answer is B .
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Question 1185: When light passes through two media x and y of refraction indices 1.51 and 1.33 respectively, the speed of light in
Options:
A) x is same as in y
B) x and y is same as in vacuum
C) x is higher than in y
D) y is higher than in x
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The correct answer is D .
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Question 1186: In a nuclear fusion experiment, the loss of mass amounts to 1.0 x 10-6kg. The amount of energy obtained from the fusion is
Options:
A) 3.0 x 10-4J
B) 3.0 x 10-1J
C) 9.0 x 104J
D) 9.0 x 1010J
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The correct answer is D .
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Question 1187: A few grains of table salt were put in a cup of water, kept at constant temperature and left undisturbed. Eventually all the water tasted salty. The action is due to
Options:
A) convection
B) osmosis
C) capillarity
D) diffusion
E) conductivity
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The correct answer is D .
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Question 1188: Which of the following does NOT describe the image formed by a plane mirror?
Options:
A) erect
B) laterally inverted
C) same distance from mirror as object
D) magnified
E) virtual
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The correct answer is D .
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Question 1189: A short response to time is obtained in liquid-in-glass thermometer when the
Options:
A) bulb is large and thick-walled
B) stem is long and thin
C) bulb is small and thicked-walled
D) liquid is of high density and the bore is large
E) bulb is thin-walled and the liquid is a good conductor of heat
Show Answer
The correct answer is E .
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Question 1190:
A ray of light passes through the centre of curvature of a concave mirror and strikes the mirror. At what angle is the ray reflected?
Options:
A) 180
B) 90
C) 0
D) 60
Show Answer
The correct answer is C .