Mention a pair of solid and liquid for each of the following cases where the angle of contact is (i) 90^@ (ii) less than 90^@ (iii) more than 90^@.

Mention a pair of solid and liquid for each of the following cases whe

1.	Mention a pair of solid and liquid for each of the following cases where the angle of contact is (i) 90^@ (ii) less than 90^@ (iii) more than 90^@.
Answer» SOLUTION :(i) In the case of silver and WATER, the angle of contact is `90^@`. (ii) In the case of glass and water, the angle of contact is LESS than `90^@`. (iii) In the case of glass and mercury, the angle of contact is more than `90^@`.