Fluid Mechanics Viscosity Question 60

Question: Water rises to a height h in a capillary at the surface of earth. On the surface of the moon the height of water column in the same capillary will be[MP PMT 2001]

Options:

A) 6h

B)$ \frac{1}{6}h $

C) h

D) Zero

Show Answer

Answer:

Correct Answer: A

Solution:

$ h=\frac{2T\cos \theta }{rdg} $ $ h\propto \frac{1}{g} $ As $ g_{m}=\frac{g_{e}}{6} $ \ $ h_{m}=6h_{e} $