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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
`h=(2T)/(dg)[(1)/(r_(1))-(1)/(r_(2))]`
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