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 (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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (A): | Smaller drops of water resist deformation forces better than larger drops. |
Reason (R): | Excess pressure inside the drop is inversely proportional to its 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. | (A) is False but (R) is True. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (A): | A thin stainless steel needle can lay floating on a still water surface. |
Reason (R): | Any object floats when the buoyant force balances the weight of the object. |
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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (A): | The shape of a liquid drop is spherical. |
Reason (R): | The pressure inside the drop is greater than that outside. |
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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (A): | At the critical temperature, the surface tension of a liquid becomes zero. |
Reason (R): | At this temperature, intermolecular forces for liquids and gases become equal. Liquid can expand without any restriction. |
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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion (A): | \(4T\over r\) (symbols have their usual meanings). | Excess pressure inside a soap bubble is
Reason (R): | In a soap bubble, surface tension force counterbalances the force due to excess pressure. |
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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology