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Q. No.For a particle performing uniform circular motion,
(a) Magnitude of particle velocity (speed) remains constant.
(b) Particle velocity remains directly perpendicular to the radius vector.
(c) Direction of acceleration keeps changing as the particle moves.
(d) Angular momentum is constant in magnitude but direction keeps changing.
Choose the correct statement/s:
1. (c, d)
2. (a, c)
3. (b, c)
4. (a, b, c)
Choose the correct statement/s:
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe following are four different relations about displacement, velocity, and acceleration for the motion of a particle in general. Choose the incorrect statement(s):
(a) vav = 1/2 [v(t1) + v(t2)]
(b) vav = r(t2)-r(t1)/t2-t1
(c) r = 1/2 [v(t2)-v(t1)](t2-t1)
(d) aav = v(t2)-v(t1)/t2-t1
1. (a), d)
2. (a), c)
3. (b), c)
4. (a), b)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| Assertion (A): | If two particles move with uniform accelerations in different directions, then their relative velocity changes in direction. |
| Reason (R): | Since the acceleration are in different directions, there is a relative acceleration and hence the relative velocity changes. |
| 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). |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| Assertion: | The maximum height of a projectile is always \(25\)% of the maximum range. |
| Reason: | For maximum height, the projectile should be projected at \(90^\circ.\) |
| 1. | Both assertion and reason are correct, reason is the correct explanation of Assertion. |
| 2. | Both assertion and reason are correct but the reason is not the correct explanation of the assertion. |
| 3. | Assertion is correct and the reason is incorrect. |
| 4. | Assertion is incorrect and the reason is correct. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: \(R={u^2 sin \theta \over g}\)
1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but the reason is false.
4. Both assertion and reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| Assertion: | Linear momentum of a body changes even when it is moving uniformly in a circle. |
| Reason: | In uniform circular motion, velocity remains constant. |
| 1. | Both assertion and reason are true and the reason is the correct explanation of the assertion. |
| 2. | Both assertion and reason are true but the reason is not the correct explanation of the assertion. |
| 3. | Assertion is true but the reason is false. |
| 4. | Both assertion and reason are false. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: Horizontal velocity has no effect on the vertical direction.
1. Both the assertion and reason are true and reason explains the assertion.
2. Both the assertion and reason are true but reason does not explain the assertion.
3. Assertion is true but reason is false.
4. Assertion is false but reason is true.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: In uniform circular motion the magnitude of acceleration remains constant but the direction continuously changes.
1. Both the assertion and reason are true and reason explains the assertion.
2. Both the assertion and reason are true but reason does not explain the assertion.
3. Assertion is true but reason is false.
4. Assertion is false but reason is true.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: At the highest point, only one component of velocity is present.
1. Both the assertion and reason are true and reason explains the assertion.
2. Both the assertion and reason are true but reason does not explain the assertion.
3. Assertion is true but reason is false.
4. Assertion is false but reason is true.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason: The path of a projectile is independent of the gravitational force of the earth.
1. Both assertion & reason are true and the reason is the correct explanation of the assertion
2. Both assertion & reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false.
4. Both assertion and reason are false statements.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
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