Question

When water rises in a capillary tube of radius `r` to height h, then its potential energy `U_(1)` if capillary tube of radius 2r is dipped in same water then potential energy of water is `U_(2)` then `U_(1):U_(2)` will be
A. `1:1`
B. `1:2`
C. `2:1`
D. `1:4`

Answer 1

Gravitational P.E. of the liquid in the tube is independent of radius of the tube.