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A liquid is coming out from a vertical t...

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

A

`W=pi r^(2) T`

B

`W=2 pi r T`

C

`W=2r^(2) pi T`

D

`W=(3)/(4)pi r^(3)T`

Text Solution

Verified by Experts

The correct Answer is:
B
weight is balanced by force of surface tension.
`therefore w= 2pi r T`
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