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Q. No.Select the correct option based on statements below:
| Assertion (A): | Insects are observed to walk on the surface of water. |
| Reason (R): | This is due to the viscous force of water acting on the insect's legs. |
| 1. | Both assertion and reason are true, and reason is the correct explanation of the assertion. |
| 2. | Both assertion and reason are true, but reason is not the correct explanation of the assertion. |
| 3. | Assertion is true but reason is false. |
| 4. | Assertion is false but reason is true. |
Subtopic: Surface Tension |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGiven below are two statements:
| Assertion (A): | Water flows through a smooth horizontal tube with a narrowing cross-section and its pressure increases. |
| Reason (R): | Bernoulli's equation for fluids states that \(P+\frac{1}{2}\rho v^2+\rho gh= \) constant along a streamline. |
| 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. |
From NCERT
Subtopic: Bernoulli's Theorem |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: Smaller drops of water resist deformation forces better than the larger drops.
Reason: Excess pressure inside drop is inversely proportional to its radius.
1. Both assertion and reason are correct and the reason is the correct explanation of assertion.
2. Both Assertion and Reason are correct but the reason is not the correct explanation of assertion.
3. Assertion is correct and the reason is incorrect.
4. Assertion is incorrect and the reason is correct.
Reason: Excess pressure inside drop is inversely proportional to its radius.
1. Both assertion and reason are correct and the reason is the correct explanation of assertion.
2. Both Assertion and Reason are correct but the reason is not the correct explanation of assertion.
3. Assertion is correct and the reason is incorrect.
4. Assertion is incorrect and the reason is correct.
Subtopic: Surface Tension |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: The stream of water flowing at high speed from a garden hose, and pipe tends to spread like a fountain when held vertically up but tends to narrow down when held vertically down.
Reason: In any steady flow of an incompressible fluid, the volume flow rate of the fluid 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.
Reason: In any steady flow of an incompressible fluid, the volume flow rate of the fluid 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.
Subtopic: Equation of Continuity |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: When height of a tube is less than liquid rise in the capillary tube, the liquid does not overflow.
Reason: Product of radius of meniscus and height of liquid in capillary tube always remains constant.
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.
Reason: Product of radius of meniscus and height of liquid in capillary tube always remains constant.
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.
Subtopic: Capillary Rise |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: If a liquid in a vessel is stirred and left to itself, the motion disappear after few minutes.
Reason: The moving liquid exerts equal and opposite force.
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.
Reason: The moving liquid exerts equal and opposite force.
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.
From NCERT
Subtopic: Viscosity |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: A large force is required to draw apart normally two glass plates enclosing a thin water film.
Reason: Water works as glue and sticks two glass plates.
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.
Reason: Water works as glue and sticks two glass plates.
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.
From NCERT
Subtopic: Surface Tension |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: The water rises higher in a capillary tube of small diameter than in a capillary tube of large diameter.
Reason: Height through which liquid rises in a capillary tube is inversely proportional to the diameter of the capillary tube.
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.
Reason: Height through which liquid rises in a capillary tube is inversely proportional to the diameter of the capillary tube.
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.
Subtopic: Capillary Rise |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: A small drop of mercury is spherical but bigger drops are oval in shape.
Reason: Surface tension of liquid decreases with increase in temperature.
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.
Reason: Surface tension of liquid decreases with increase in temperature.
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.
Subtopic: Surface Tension |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: To float, a body must displace liquid whose weight is greater than actual weight of the body.
Reason: During floating the body will experience no net downward force in that case.
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.
Reason: During floating the body will experience no net downward force in that case.
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.
From NCERT
Subtopic: Archimedes' Principle |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
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