Question

28. With the increase in temperature the angle of contact between glass and water
1) decreases 2) increases 3) remains cont
4) some times increases and some times decreases
20 When a canillary tube is immersed into a liamid the liquid neither rices nor falls in​

Answer 1

Answer:

28.Angle ofcontact(2).Increases.

20.Because the adhesive force exists only as long as capillary tube.