When a clean lengthy capillary tube is dipped vertically in a beaker containing water, the water rises to a height of 8 cm. What will happen if another capillary tube of length 4 cm and same radius is dipped vertically in the same beaker containing water. (angle of contact of water is `0^(@)`)

Options

A. Water will flow out like a fountain.
B. water will rise to a height of 4 cm only and the angle of contact will be zero
C. water will rise to the a height of 4 cm only and the angle of contact will be `60^(@)`
D. water will not rise at all

Answer

C

Explanation

`l=h//costheta`