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  1. Rise of oil a wick is due to

  2. A.

     Density of the oil

    B.

     Viscosity of the oil

    C.

     Surface tension of the oil

    D.

     Pressure of the oil

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    Answer : Option C

    Explanation :

    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.


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