Question
Physics Question on potential energy
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
Answer
On the rising of an air bubble in water
Explanation
Solution
Every body have a tendency to attain the position of minimum potential energy. Air bubble in water also tries to do so, therefore on the rising of an air bubble in water energy decrease and finally bubble attains the position of minimum potential energy.