Which of the following explains the concave meniscus of water in a glass tube?
A
The adhesion between water and glas is greater than the cohesion between water molecules
B
The cohesion between water molecule is greater than the adhesion between glass and water
C
The molecules of water in the glass are moving faster than the molecules in the other parts
D
The molecules of water at the water-air boundary are often attracted to the center of the tube
E
The weight of the water pulls the central part of the surface down
Verified Correct Answer: A.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #23845)