Q.

A liquid is coming out from a vertical tube. The relation between the weight of the drop W, surface tension of the liquid T and radius of the tube r is given by, if the angle of contact is zero

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a

W=πr2T

b

W=2πrT

c

W=2r2πT

d

W=34πr3T

answer is B.

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Detailed Solution

If the angle of contact is zeroThe relation between the weight of the drop W, surface tension of the liquid T and radius of the tube r is given by,  W=2πrT
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