Question

The height of liquid column raised in a capillary tube of certain radius when dipped in liquid 'A'

vertically is 10cm. If the tube is dipped in a similar manner in another liquid B of surface tension and density values double to that of liquid A, the height of liquid column raise in liquid B would be m.

Answer 1

\(h=\frac{2Scos\theta}{r\rho g}\)

\(\therefore\frac{h_1}{h_2}=\frac{S_1}{S_2}\frac{\rho_2}{\rho_1}\)

\(\frac{10}{h_2}=[\frac{1}{2}][\frac{2}{1}]\)

\(\Rightarrow h_2=10cm=0.1m\)