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The radii of the two columne is U-tube a...

The radii of the two columne is U-tube are `r_(1)` and `r_(2)(gtr_(1))`. When a liquid of density `rho` (angle of contact is `0^@))` is filled in it, the level different of liquid in two arms is h. The surface tension of liquid is
`(g=` acceleration due to gravity)

A

`(rhoghr_(1)r_(2))/(2(r_(2) - r_(1))`

B

`(rhogh(r_(1)-r_(2)))/(2r_(1)r_(2))`

C

`(2(r_(2) - r_(1)))/(rhoghr_(1)r_(2))`

D

`(rhogh)/(2(r_(2) - r_(1)))`

Text Solution

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The correct Answer is:
A
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