Question

vibratory motion and rotatory motion are periodic motions​

Answer 1

→ False

Correct Statement: Vibratory motion and oscillatory motion are periodic motions.

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Answer 2

Explanation:

True statement

Vibratory motion and rotatory motion are periodic motions. Periodic motion is the moving of object in the repeated itself over and over again in the regular intervals of time.Vibratory or the harmonic motion is the repeatedly back and forth based on the position.

Vibratory motion:-

When a part of the body remains fixed and the rest part moves to and fro, that is called vibratory motion.

Rotatory motion:-

The body moves about a fixed axis without changing the radius of its motion, it is said to be rotatory motion. Examples: a spinning wheel. The radius is called 32 motion, for example, spinning with thank you for watching the video.