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In a capillary tube of radius 'R' a stra...

In a capillary tube of radius 'R' a straight thin metal wire of radius 'r' (`Rgtr)` is inserted symmetrically and one of the combination is dipped vertically in water such that the lower end of the combination Is at same level . The rise of water in the capillary tube is [T=surface tensiono of water `rho` =density of water ,g =gravitational acceleration ]

A

`T/((R + r)rhog)`

B

`(2T)/((R + r) rho g)`

C

`(2 T)/((R - r)rhog)`

D

`((R - r)rhog)/(T)`

Text Solution

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The correct Answer is:
C
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