Q

Which statement accurately describes how energy transforms during the free fall of an object under gravity?

RRB JE 20/02/2026 / 4:30 PM - 6:00 PM 2026
✓ Answer: D Potential energy decreases while kinetic energy increases, maintaining constant total mechanical energy.
Parallel rays falling on a convex mirror are reflected so that they appear to originate from the principal focus behind the mirror.