Question

explain the reason for capillary depression?​

Answer 1

Answer:

Capillarity is the result of surface, or interfacial, forces. The rise of water in a thin tube inserted in water is caused by forces of attraction between the molecules of water and the glass walls and among the molecules of water themselves. ... The narrower the bore of the capillary tube, the higher the water rises.

Answer 2

Answer:

This phenomenon is due to the combined effect of cohesion and adhesion of liquid particle. The rise of liquid level is known as Capillary Rise whereas the fall of liquid surface is known as Capillary Depression.Mercury is a liquid that shows capillary depression. Mercury does not wet the walls of the container.

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