Two of the three tuning forks have known frequencies. When a 510 Hz. fork and the unknown fork are struck together, four beats per second are heard. When a 505 Hz. fork is struck with the unknown fork, beats are produced that are too numerous to count accurately. What is the frequency of the unknown fork?

Question

Physics

Landon Gaines

9 September, 03:49

Two of the three tuning forks have known frequencies. When a 510 Hz. fork and the unknown fork are struck together, four beats per second are heard. When a 505 Hz. fork is struck with the unknown fork, beats are produced that are too numerous to count accurately. What is the frequency of the unknown fork?

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Answers (1)

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Aaron Garrison · Answer 1

4 Hz is the difference between 510 and the unknown.

Therefore the unknown is either 514 or 506.

If 505 and 506 were struck together, the diff would be 1 Hz

If 505 and 514 were struck toghether, the diff would be 9 Hz which would be difficult to count accurately,

Therefore the unknown is 514