Question

Water rises to a height of `2 cm` in a capillary tube. If the tube is tilted `60^@` from the vertical, water will rise in the tube to a length of
A. `4.0cm`
B. `2.0cm`
C. `1.0cm`
D. water will not ruse at all

Answer 1

Correct Answer - A

Since water rises to height of `2cm` in a capillary
If tube is at `60^@`. In this case height must be equal to
`h=2cm`
`impliescos60^@=(h)/(l)`
`l=(h)/(cos60^@)=(2)/((1)/(2))=4cm`