Water rises in a capillary tube upto a c...

Water rises in a capillary tube upto a certain height such that the upward force of surface tension balances the force of `75 xx 10^(-5)N` due to weight of the liquid. If surface tension of water is ` 6 xx 10^(-2)Nm^(-1)`, what must be the internal circumference of the capillary tube?

`1.25xx10^(-2)`m

`0.50xx10^(-2)` m

`6.5xx10^(-2)` m

`12.5xx 10^(-2) m`

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