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Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true but (R) is not the correct explanation of (A)

(A) is true but (R) is false

Both (A) and (R) are false

answer is C.

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Detailed Solution

Cotton balls have a lot of air occupied in them, that is why they are always fluffy.

When water is added to them, the water displaces the air in the cotton balls, and being water a liquid, it uses less space compared to air. Thus, cotton balls shrink when put in water.

Thus, the Assertion is correct but the reason is INCORRECT as size reduces due to displacement of air by water.

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