Question

by the method of dimension obtain the expression for the surface tension as of a liquid That depends on mass M of the liquid pressure P of the liquid and the radius R of the capillary tube

Answer 1

force = S.dl
S = surface tension
dl = small length particle

also
P = S/R

S=PR

dimension of S
= MT-²

Answer 2

It has no component perpendicular to the horizontal surface. As a result, there is no pressure difference between the liquid side and the vapour side. ... Thus, there is always an excess of pressure on the concave side of a curved liquid surface over the pressure on its convex side due to surface tension.