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Q. No.Given below are two statements:
Assertion (A):
When height of a tube is less than liquid rise in the capillary tube, the liquid does not overflow.
Reason (R):
Product of radius of meniscus and height of liquid in capillary tube always remains constant.
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: Â Capillary Rise |
 72%
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Given below are two statements:
| Assertion (A): | If a liquid in a vessel is stirred and left to itself, the motion disappear after few minutes. |
| Reason (R): | The moving liquid exerts equal and opposite force. |
| 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: Â Viscosity |
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Given below are two statements:
| Assertion (A): | A large force is required to draw apart normally two glass plates enclosing a thin water film. |
| Reason (R): | Water works as glue and sticks two glass plates. |
| 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: Â Surface Tension |
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Given below are two statements:
| Assertion (A): | Water rises higher in a capillary tube with a small diameter than in the one with a large diameter. |
| Reason (R): | The height to which a liquid rises in a capillary tube is inversely proportional to the diameter of the capillary tube. |
| 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: Â Capillary Rise |
 90%
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Given below are two statements:
| Assertion (A): | A small drop of mercury is spherical but bigger drops are oval in shape. |
| Reason (R): | Surface tension of liquid decreases with increase in temperature. |
| 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: Â Surface Tension |
 64%
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Given below are two statements:
| Assertion (A): | To float, a body must displace liquid whose weight is greater than the actual weight of the body. |
| Reason (R): | During floating, the body will experience no net downward force in that case. |
| 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: Â Archimedes' Principle |
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Given below are two statements:
| Assertion (A): | A ship floats higher in the water on a high-pressure day than on a low-pressure day. |
| Reason (R): | Floating of ship in the water is not possible because of buoyancy force which is present due to pressure difference. |
| 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: Â Archimedes' Principle |
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Given below are two statements:
| Assertion (A): | A bubble comes from the bottom of a lake to the top. |
| Reason (R): | Its radius 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: Â Pressure |
 67%
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Assertion: Bigger drops of liquid resist deforming forces better than the smaller drops.
Reason: Excess pressure inside the drop is directly proportional to its radius.
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.
Reason: Excess pressure inside the drop is directly proportional to its radius.
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.
Subtopic: Â Surface Tension |
 74%
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Given below are two statements:
| Assertion (A): | When two soap bubbles of different radii are brought into contact, the common interface of contact bulges into the bubble of larger radii. |
| Reason (R): | Pressure inside a soap bubble of a lesser radius is more than pressure inside the soap bubble of a larger radius. |
| 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: Â Surface Tension |
 71%
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