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A vertical capillary is brought in conta...

A vertical capillary is brought in contact with the water surface (surface tension = T). The radius of the capillary is r and the contact angle `theta = 0^(@)`. The increase in potential energy of the water (density `=rho`) is

A

`(2pi S^(2))/(rhog)`

B

`(pis^(2))/(rhog)`

C

Zero

D

`(4pi S^(2))/(rhog)`

Text Solution

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The correct Answer is:
A
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