In which case does the potential energy decrease?

Question

In which case does the potential energy decrease? (A) On compressing a spring (B) On stretching a spring (C) On moving a body against gravitational force (D) On the rising of an air bubble in water

Tardigrade Admin · Accepted Answer

On rising of an air bubble in water, depth of bubble starts decreasing which lead to decrease in its buoyancy potential energy. Hence, the answer is on the rise of an air bubble in water.

Q. In which case does the potential energy decrease?

On compressing a spring

On stretching a spring

On moving a body against gravitational force

On the rising of an air bubble in water

On rising of an air bubble in water, depth of bubble starts decreasing which lead to decrease in its buoyancy potential energy. Hence, the answer is on the rise of an air bubble in water.