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Question

Oil raise up the wick in a lamp. The principle involves

A
the diffusion of oil through the wick
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B
the liquid state of oil
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C
capillary action phenomenon
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D
volatility of oil
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Solution

The correct option is C capillary action phenomenon
The raise of oil up the wick in a lamp is an example of capillary action where adhesive forces are greater than cohesive forces.

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