Q. The potential energy of a freely falling body continuously decreases.

Correct Answer: b) and d)

Explanation:
– In free fall (ignoring air resistance), as height decreases, gravitational potential energy U = mgh decreases. The lost potential energy is converted into kinetic energy K = 1/2 mv^2.
– Since ΔK = −ΔU, the total mechanical energy E = K + U remains constant. So the principle of conservation of energy is not violated (option b).
– This behavior is exactly what a conservative gravitational force predicts; there is no “violation” of gravity (option d). Options a and c are false.