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Two capillary tubes of same diameter are...

Two capillary tubes of same diameter are put vertically one each in two liquids whose relative densities are 0.8 and 0.6 and surface tensions are 60 dyne/cm and 50 dyne/cm respectively. Ratio of heights of liquids in the two tubes `(h_(1))/(h_(2))` is

A

`10/9`

B

`3/10`

C

`10/3`

D

`9/10`

Text Solution

Verified by Experts

The correct Answer is:
D
`h prop sigma/rho`
`implies h_1/h_2=sigma_1/sigma_2xxrho_2/rho_1=60/50xx(0.6)/(0.8)=9/10`
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