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Question

When a body vibrates under a periodic force, the vibration of the body is called:


  1. natural vibration

  2. damped vibration

  3. forced vibration

  4. resonant vibration


Solution

The correct option is C

forced vibration


When an external periodic force is applied to a vibrating body, the body gradually acquires the frequency of the applied periodic force.  

Such vibration under the influence of periodic force is known as forced vibration.

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