Question

what is the periodic mention ?​

Answer 1

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• Motion repeated in equal intervals of time is known are periodic motion.
• for example, by a rocking chair, a bouncing ball, a vibrating tuning fork, a swing in motion, the Earth in its orbit around the Sun, and a water wave etc.

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#Hope it helps..

Answer 2

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what is the periodic mention ?

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Motion which repeats itself after a regular interval is called periodic motion.

Eg.

• Motion of a simple pendulum.
• Motion of a needle of a sewing machine.
• String of guitar.