Question

what is vibration???​

Answer 1

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The random to and fro motion of an object from its position is called vibration. It generally has high frequency.

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Answer 2

Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point. The word comes from Latin vibrationem. The oscillations may be periodic, such as the motion of a pendulum—or random, such as the movement of a tire on a gravel road.