Water rises to a height of 16.3 cm in a capillary of height 18 cm above the water leve. If the tube is cut at a height of 12 cm -

Options

A. Water will come as a fountain from the capillary tube
B. Water will stay at a height of 12 cm in the capillary tube
C. The height of the water in the capillary will be10.3 cm
D. Water will flow down the sides of the capillary tube

Answer

B

Explanation

`h=(2sigmacostheta)/(Rrhog)Rightarrow(costheta_1)/(costheta_2)=(h_1)/(h_2)=(16.3)/(12)=1.36Rightarrowtheta_(2)gttheta_(1)Rightarrowtheta` will increase to maintain h = 12 cm