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Q. No.The restoring force of a spring, with a block attached to the free end of the spring, is represented by:
1.
2.
3.
4.
Subtopic: Spring mass system |
71%
Level 2: 60%+
NEET - 2022
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Match List-I with List-II.
Choose the correct answer from the options given below:
| List-I (\(x \text{-}y\) graphs) |
List-II (Situations) |
||
| (a) |  |
(i) | Total mechanical energy is conserved |
| (b) |  |
(ii) | Bob of a pendulum is oscillating under negligible air friction |
| (c) |  |
(iii) | Restoring force of a spring |
| (d) |  |
(iv) | Bob of a pendulum is oscillating along with air friction |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (ii) | (iii) | (i) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (i) | (iv) | (iii) | (ii) |
| 4. | (iii) | (ii) | (i) | (iv) |
Subtopic: Energy of SHM |
86%
Level 1: 80%+
NEET - 2022
Hints
Given below are two statements:
| Assertion (A): | In simple harmonic motion, the motion is to and fro and periodic. |
| Reason (R): | In simple harmonic motion, the particle's velocity is given by \(v=\omega \sqrt {A^2-x^2},\) (where \(x\) is the displacement of the particle). |
| 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: Simple Harmonic Motion |
83%
Level 1: 80%+
Hints
Given below are two statements:
| Assertion (A): | Acceleration of a particle in SHM is always zero. |
| Reason (R): | Two SHMs must have the same phase if the amplitude is same. |
| 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: Simple Harmonic Motion |
84%
Level 1: 80%+
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Given below are two statements:
| Assertion (A): | The time period of a pendulum, on a satellite orbiting the earth, is infinity. |
| Reason (R): | Time-period of a pendulum is inversely proportional to \(\sqrt g \). |
| 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: Angular SHM |
66%
Level 2: 60%+
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Given below are two statements:
| Assertion (A): | The graph of potential energy and kinetic energy of a particle in SHM with respect to position is a parabola. |
| Reason (R): | Potential energy and kinetic energy do not vary linearly with position. |
| 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: Energy of SHM |
Level 3: 35%-60%
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Given below are two statements:
| Assertion (A): | When a girl sitting on a swing stands up, the periodic time of the swing decreases. |
| Reason (R): | When a girl stands up, more weight is felt on the string of the swing. |
| 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: Angular SHM |
Level 3: 35%-60%
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Given below are two statements:
| Assertion (A): | The graph between velocity and displacement for a simple harmonic motion is an ellipse. |
| Reason (R): | Velocity does not change uniformly with displacement in simple harmonic motion. |
| 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: Simple Harmonic Motion |
Level 3: 35%-60%
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Given below are two statements:
| Assertion (A): | If a pendulum is suspended in a lift and the lift is falling freely, then its time period becomes infinite. |
| Reason (R): | The free-falling body has acceleration equal to 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: Angular SHM |
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Level 1: 80%+
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Given below are two statements:
| Assertion (A): | When a pendulum is made to oscillate on the surface of the moon, its time period increases. |
| Reason (R): | Moon is much smaller as compared to Earth. |
| 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: Angular SHM |
Level 3: 35%-60%
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