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If the surface tension of water is 0.06 ...

If the surface tension of water is 0.06 Nm, then the capillary rise in a tube of diameter 1mm is `(theta=0^(@)`)

A

`1.22cm`

B

`2.44cm`

C

`3.12cm`

D

`3.86cm`

Text Solution

Verified by Experts

The correct Answer is:
B
`h=(2T cos theta)/(rdg), [theta=0, r=(1)/(2) mm = 0.5xx10^(-3)m, T=0.06 N//m, d=10^(3) kg//m^(3)`,
`g=9.8m//s^(2)]`
`h=(2xx0.06xxcos theta)/(0.5xx10^(-3)xx10^(3)xx9.8) = 0.0244m = 2.44cm`
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