Height of rise of water in a capillary tube is directly proportional to

A. Surface tension of water

B. Radius of capillary tube

C. Viscosity of water

D. As in (A) and (C) above

Answer: Option A

Solution(By Examveda Team)

The height of the rising of water in a capillary tube is directly proportional to the surface tension of water.
Surface tension is the tendency of the liquid surface at rest to shrink into the minimum surface area possible. This force of attraction between the molecules in response to the surface tension causes the rise of water in a capillary tube.