Question Detail

PHY 101 Surface Tension Objective Question

Question

What type of meniscus forms when the molecules of a liquid have a stronger attraction to the container material (adhesion) than to each other (cohesion)?
Options
A A convex meniscus
B A flat meniscus
C A concave meniscus
Correct Answer
D An irregular meniscus
Correct Answer

Option C is the correct answer.

Detailed Explanation

Stronger adhesive forces cause the liquid to be pulled up the walls of the container. This upward pull at the edges creates a curved surface that is lower in the middle, which is a concave meniscus (e.g., water in a glass tube).

Hint

Think of water in a glass tube. The water climbs the walls, curving downward in the center.

Question Info