To what height does the liquid rise in a capillary tube of radus 0.25 mm, when dipped in a liquid of density `0.8 xx 10^(3) kg m^(-3)` and surface tension 0.05 N `m^(-1)`? Given `(cos theta = 0.4)`

Explanation

To find the height to which the liquid rises in a capillary tube, we can use the formula for capillary rise:

\[ h = \frac{2 \cdot \gamma \cdot \cos \theta}{\rho \cdot g \cdot r} \]

where:
- \( h \) = height of the liquid column
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