1.

The capillary rise or fall of a liquid is given by

A. \(h = \frac{{4\sigma \cos \theta }}{{\rho gd}}\)
B. \(h = \frac{{2\sigma \cos \theta }}{{\rho gd}}\)
C. \(h = \frac{{8\sigma \cos \theta }}{{\rho gd}}\)
D. \(h = \frac{{9\sigma \cos \theta }}{{\rho gd}}\)
Answer» B. \(h = \frac{{2\sigma \cos \theta }}{{\rho gd}}\)


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