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The radius of capillary tube is 0.025 mm...

The radius of capillary tube is 0.025 mm. If is held vetically in a liquid whose density is `0.8 xx 10^(3) "kg" m^(-3),` surface tension is `3.0xx10^(-2)"Nm"^(-1)` and for which the cosine of the angle of contact is 0.3. Determine the height upto which the liquid will rise in the tube . Given `g=10"ms"^(-2).`

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`(9cm)`
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