Question

What is capillarity?state any two illustration of capillarity.

Answer 1

Dear student

Capillarity is the phenomenon by which liquids like water can flow against gravity within a very narrow tube or capillary. This phenomenon is also called capillary action. Thinner is the tube, higher is the capillarity.

illistration OF CAPILLARITY:

(i) A blotting paper absorbs ink by capillary action. The pores in the blotting paper act as capillaries.
(ii) The oil in a lamp rises up the wick through the narrow spaces between the threads of the wick.
(iii) A sponge retains water due to capillary action.
(iv) Walls get damped in rainy season due to absorption of water by bricks.

Regards