Question

which of the following is not periodic motion option is 1. A swinging pendulum 2. Hands of clock 3. Rotation of earth 4. A flying kite

Answer 1

Periodic motion is a motion that motion which is repeated at equal intervals of time.

Swinging of a pendulum, hands of a clock and rotation of the earth are all periodic motions having a definite and equal length of time interval.

It is the flying kite which has no periodic motion.