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When one of a tuning fork's arms is broken, the frequency of vibration is:

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Keeps on increasing and decreasing

Less than before

Not affected

More than before

answer is A.

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Detailed Solution

When one of a tuning fork's arms is broken, the frequency of vibration is not affected

A tuning fork's frequency is inversely proportional to the prongs' squared length. Therefore, since one prong is still standing undamaged, the fork will have the same squared length. Therefore, frequency is unaffected.

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