Question

Derive an expression for the rise of liquid in a capillary tube of height h and radius r.​

Answer 1

$\huge \underline \mathbb {SOLUTION:-}$

When one end of capillary tube of radius r is immersed into a liquid of density ρ which wets the sides of the capillary tube (water and capillary tube of glass), the shape of the liquid meniscus in the tube becomes concave upwards. R = radius of curvature of liquid meniscus.