Question

angle of contact for one example ​

Answer 1

Answer:

This is the answer given up

Answer 2

Answer:

mercury on the glass surface Mercury does not wet the glass and thus it forms a drop on the glass. Case – 3: If T2 -T1 = T3, then cos θ is 1 and the angle of contact is zero. For pure water, cos θ is almost 1 i.e. water wets the glass and thus water spreads on the glass.