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Rise of oil a wick is due to
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- density of the oil
- viscosity of the oil
- surface tension of the oil
- pressure of the oil
- density of the oil
Correct Option: C
The phenomenon of rise or fall of liquid in a capillary tube is called capillarity. Oil rises through a wick due to capillarity. The narrow pores in the threads of a wick act like tiny capillaries, through which oil rises. Capillary action is the result of adhesion and surface tension.
