Question

A capillary tube of radius `r` is immersed in a liquid. The liquid rises to a height `h`. The corresponding mass is `m`. What mass of water shall rise in the capillary if the radius of the tube is doubled?
A. `M`
B. `2M`
C. `(M)/(2)`
D. `4M`

Answer 1

Correct Answer - B
Mass of liquid in capillary tube
`M=piR^2Hxxrho` `because` `MpropR^2xx((1)/(R ))`
`MpropR`. If radius becomes double then mass will become twice.