Physics, asked by suhailamummer, 9 months ago

Derive an expression for the capillary height of a liquid in a narrow tube.

Answers

Answered by eshalfarah123

Answer:

W = ρ (πD²/4) h g --(1)

The surface on the top liquid inside the capillary tube has a trough (cup) like shape. Assume the angle of contact with the walls be Ф. Surface tension is the contact force per unit length along the circumference of top surface. This force pulls the liquid vertically upwards

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