38. The motion of a body that repeats itself after a regular interval of time is A.A periodic motion B.A simple harmonic motion C.An aperiodic motion D.An oscillatory motion
Option A Solution: A motion that repeats itself after equal intervals of time is known as periodic motion. Examples of periodic motion are a tuning fork or motion of a pendulum if you analyze the motion you will find that the pendulum passes through the mean position only after a definite interval of time.
