Q.

The kerosene oil rises up in the wick of a lamp

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a

Due to capillaries formed in the wick

b

Because the wick attract s the oil

c

Due to high surface tension of oil 

d

Because wick decreases the surface tension of oil

answer is D.

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Detailed Solution

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Capillary action is responsible. Wick has a lot of capillaries which help the oil rise.

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