Q

What happens to the potential energy of an object if its mass is halved while its height above the ground remains constant?

RRB JE 20/02/2026 / 4:30 PM - 6:00 PM 2026
✓ Answer: D The potential energy is halved
Using the Cartesian convention for the stated mirror diagram, the sign of a distance depends on its direction relative to the pole and principal axis. The correct option follows from that convention.