WAEC - Physics (1988 - No. 46)
Which of the following explains the concave meniscus of water in a glass tube?
The adhesion between water and glas is greater than the cohesion between water molecules
The cohesion between water molecule is greater than the adhesion between glass and water
The molecules of water in the glass are moving faster than the molecules in the other parts
The molecules of water at the water-air boundary are often attracted to the center of the tube
The weight of the water pulls the central part of the surface down