1.

What do you mean by capillarity or capillary action ?

Answer»

Solution :In a LIQUID whose angle of contact with SOLID is less than `90^@`, suffers capillary rise. On the other hand, in a liquid whose angle of contact it is greater than `90^@`, suffers capillary FALL. The rise or fall of a liquid in a narrow tube is called capillary are capillary action.


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