Question: When two tuning forks are struck simultaneously, 4 beats per second are heard. The frequency of one fork is 500 Hz. (a) What are the

When two tuning forks are struck simultaneously, 4 beats per second are heard. The frequency of one fork is 500 Hz.

(a) What are the possible values for the frequency of the other fork?

(b) A piece of wax is placed on the 500-Hz fork to lower its frequency slightly. Explain how the measurement of the new beat frequency can be used to determine which of your answers to part (a) is the correct frequency of the second fork.

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