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Question
When a body vibrates under a periodic force, the vibrations of the body are ______.
Options
natural vibrations
Damped vibrations
Forced vibrations
Resonant vibrations
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Solution
When a body vibrates under a periodic force, the vibrations of the body are forced vibrations.
Explanation:
A body's vibrations that take place under the influence of an external periodic force acting on it are called forced vibrations.
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