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Question

A person drives the paddle ball by moving his finger up and down at a certain frequency. In this example he is causing

A
a damped vibration
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B
a forced vibration
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C
a mechanical vibration
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D
a transnational vinration
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Solution

The correct option is B a forced vibration.
A person drives the paddle ball by moving his finger up and down at an accelerating frequency. This is the example of force vibration as the motion of finger force to move paddle balls.


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