[amp_mcq option1=”cohesion pressure is negligible” option2=”cohesion pressure is decreased” option3=”cohesion pressure is increased” option4=”there is no cohesion pressure” correct=”option3″]
The correct answer is: C. cohesion pressure is increased.
Cohesion pressure is the force that holds molecules of a liquid together. When the surface of a liquid is convex, the molecules at the surface are pulled inward by the molecules below them. This creates a force that pushes against the walls of the container. The greater the curvature of the surface, the greater the cohesion pressure.
Option A is incorrect because cohesion pressure is not negligible. Option B is incorrect because cohesion pressure is not decreased. Option D is incorrect because there is always cohesion pressure in a liquid.