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A long glass capillary (radius R) is tak...

A long glass capillary (radius R) is taken out of liquid (surface tension S and density `rho`) in vertical position. Angle of contact everywhere is zero. Atmospheric pressure is `P_(0)`. It is observed that the capillary retains some liquid.

The radius of curvature of meniscus at the bottom of tube is

A

R

B

`oo`

C

`R//2`

D

`R//3`

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The correct Answer is:
A
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