Embibe Experts Solutions for Chapter: Viscosity and Surface Tension, Exercise 1: AMU-AT (B.Tech.) 2018

In a capillary tube experiment, a vertical, $30 \mathrm{cm}$ long capillary tube is dipped in water. The water rises upto a height of $10 \mathrm{cm}$ due to capillary action. If this experiment is conducted in a freely falling elevator, the length of the water column becomes

Two solid spheres of the same metal but of mass $M$ and $8M$ fall simultaneously in a viscous liquid. The ratio of terminal velocity of the second sphere to that of the first sphere is