BPSC – Combined Competitive Examination · ప్రశ్న 125
The potential energy of a freely falling body continuously decreases. Therefore:
సమాధానం చూపించు & వివరణ
సమాధానం: (B) The principle of conservation of energy is not violated
వివరణ
As the body falls, potential energy converts to kinetic energy; total mechanical energy is conserved.
- (A) తప్పు
Wrong: lost potential energy becomes kinetic energy, so energy is conserved.
- (B) సరైనది
Correct: PE + KE stays constant (ignoring air resistance).
- (C) తప్పు
Wrong: meaningless; gravity is what causes the fall.
- (D) తప్పు
Wrong: irrelevant to the energy question asked.