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1) An object at rest may have
Correct Answer - Option
(B)
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Physics MCQ Questions with answers
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2) Which conservation principle is applicable in the case of the motion of a rocket?
Correct Answer - Option
(C)
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3) Rocket works on the principle of
Correct Answer - Option
(A)
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4) A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to
Correct Answer - Option
(B)
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5) When a running car stops suddenly, the passengers tends to lean forward because of:
Correct Answer - Option
(C)
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6) A man stands in a lift which accelerates upwards. The resultant reaction force on the floor of the lift is
Correct Answer - Option
(A)
Explanation:
The weight of the man mg is acting on the floor. As the lift is moving up with an acceleration, say a, the man too in it is having this acceleration. The force producing this acceleration is ma. By Newton's third law, this force will have an equal reaction pressing the floor equal to ma. Therefore the total resultant reaction on the floor is mg+ma = m(g+a) which is mg, the weight of the man. So (a) is correct.
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7) Who defined the law of gravitation ?
Correct Answer - Option
(A)
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8) It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement?
Correct Answer - Option
(C)
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9) In the Earth, the weight of a body is maximum at the
Correct Answer - Option
(D)
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10) A person is hurt on kicking a stone due to
Correct Answer - Option
(C)
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