Question

Motion which repeats itself after regular intervals is called

• A. oscillatory motion
• B. vibratory motion
• C. periodic motion
• D. none

Answer 1

The correct option is C periodic motion

Motion which repeats itself after regular intervals of time is known as periodic motion. It can be uniform circular motion, oscillating pendulum. The necessary condition for periodic motion is that the time period of each repeating motion should be same (constant).

Oscillatory motion and vibratory motion is to-and-fro motion which must involve motion between two extreme positions. The motion may or may not repeat itself at fixed intervals of time, i.e. the time period may or may not be constant.