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Vibration

A watch becom...

Question

A watch becomes fast by 5 minutes in a day. In the watch makers shop, it keeps correct time. It is due to :

A

natural vibrations

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B

forced vibrations

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C

damped vibrations

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D

none of these

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Solution

The correct option is B forced vibrations
In watchmakers' shop watch is oscillated with forced vibrations, so it has keeps correct time there. By itself, watch performs oscillations at natural frequency which is faster.

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