Q

An object is placed on a shelf 2 m above the ground. If the shelf is raised to 4 m, what happens to the potential energy of the object?

RRB JE 20/02/2026 / 12:45 PM - 2:15 PM 2026
✓ Answer: A The potential energy doubles
Gravitational potential energy is PE = mgh. If height increases from 2 m to 4 m while mass and g remain constant, the potential energy doubles.