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A tuning fork A, marked 512 Hz, produces...

A tuning fork A, marked 512 Hz, produces 5 beats per second, when sounded with another unmarked tuning fork B. If B is loaded with wax, the number of beats is again 5 per second. What is the frequency of tuning fork B when not loaded?

Text Solution

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Frequecny of tuning fork A,
`" " v_(A)=512Hz`
Probable frequency of tuning fork B,
`" " v_(B)=v_(A)+-5=512+-5=517 ` or 507 Hz
when B is loaded its frequency reduces
If it is 517 Hz , it might reduced to 507 Hz given again a beat of 5 Hz.
If it is 507 Hz, reduction will always increaese the beat frequency , hence `v_(B)=517Hz`
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