Question

What is capillary Rise? Derive the equation for the same.

Answer 1

A rise in a liquid above the level of zero pressure due to a net upward force produced by the attraction of the water molecules to a solid surface, e.g. glass, soil (for those cases where the adhesion of the liquid to the solid is greater than the cohesion of the liquid to itself)

When one end of capillary tube of radius r is immersed into a liquid of density P which wets the sides of capillary tube (say water and capillary tube of glass), the shape of the liquid is in the tube becomes concave upwards in figure