Graduated cylinder showing curved surface of water where the sides of the water are higher than the center
Which of the following identifies this phenomenon and explains how it is formed?
Choose 1 answer:
Choose 1 answer:
(Choice A) The curved surface is a concave meniscus which has formed because of surface tension.
A
The curved surface is a concave meniscus which has formed because of surface tension.
(Choice B) The curved surface is a concave meniscus which has formed because of capillary action.
B
The curved surface is a concave meniscus which has formed because of capillary action.
(Choice C) The curved surface is a convex meniscus which has formed because of capillary action.
C
The curved surface is a convex meniscus which has formed because of capillary action.
(Choice D) The curved surface is a convex meniscus which has formed because of surface tension.
D
The curved surface is a convex meniscus which has formed because of surface tension.
1 answer
The correct answer is:
(Choice A) The curved surface is a concave meniscus which has formed because of surface tension.
A concave meniscus occurs when the adhesive forces between the water molecules and the walls of the graduated cylinder are stronger than the cohesive forces between the water molecules themselves, causing the surface of the water to curve upward at the edges. This is primarily due to surface tension.
