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Q. No.Given below are two statements:
Assertion (A):
A standing bus suddenly accelerates. If there was no friction between the feet of a passenger and the floor of the bus, the passenger would move back.
Reason (R):
In the absence of friction, the floor of the bus would slip forward under the feet of the passenger.
1.
(A) is True but (R) is False.
2.
(A) is False but (R) is True.
3.
Both (A) and (R) are True and (R) is the correct explanation of (A).
4.
Both (A) and (R) are True but (R) is not the correct explanation of (A).
Subtopic: Newton's Laws |
62%
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NEET - 2022
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Given below are two statements:
| Assertion (A): | Thrust on a rocket does not depend only on the rate of decrease of mass. |
| Reason (R): | Thrust also depends upon the exhaust speed of the gases. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Newton's Laws |
62%
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Given below are two statements:
| Assertion (A): | Centripetal forces and centrifugal forces never cancel out. |
| Reason (R): | They do not act at the same time. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Pseudo Force |
62%
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Given below are two statements:
| Assertion (A): | A safe turn by a cyclist should neither be fast nor sharp. |
| Reason (R): | The bending angle from the vertical would decrease with an increase in velocity. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Banking of Roads |
56%
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Given below are two statements:
| Assertion (A): | A table cloth can be pulled from a table without dislodging the dishes. |
| Reason (R): | To every action, there is an equal and opposite reaction. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Newton's Laws |
64%
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Given below are two statements:
| Assertion (A): | A body of mass \(1\) kg is making \(1\) rps in a circle of radius \(1\) m. The centrifugal force acting on it is \(4\pi^{2}\) N. |
| Reason (R): | Centrifugal force is given by \(F =\frac{m v^{2}}{r} .\) |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Uniform Circular Motion |
63%
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Given below are two statements:
| Assertion (A): | The acceleration of a body down a rough inclined plane is greater than the acceleration due to gravity. |
| Reason (R): | The body is able to slide on an inclined plane only when its acceleration is greater than the acceleration due to gravity. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Friction |
63%
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Given below are two statements:
| Assertion (A): | When a cyclist doubles his speed of turning, the chance of his skidding becomes nearly four times. |
| Reason (R): | When the speed of the vehicle increases, the angle of bending also increases. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Banking of Roads |
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Given below are two statements:
| Assertion (A): | It is easier to pull a heavy object than to push it on a levelled ground. |
| Reason (R): | The magnitude of the frictional force depends on the nature of the two surfaces in contact. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Friction |
64%
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Given below are two statements:
| Assertion (A): | A man who falls from a height on a cement floor receives more injury than when he falls from the same height on a heap of sand. |
| Reason (R): | The impulse applied by a cement floor is less than the impulse applied by a sand floor. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Application of Laws |
66%
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