You have three tuning forks, A , B , and C . Fork B has a frequency of 400Hz ; w

Question

You have three tuning forks, A, B, and C. Fork Bhas a frequency of 400Hz ; when A and B are sounded together, a beat frequency of 4Hz is heard. When B and C are sounded together, the beat frequency is 6Hz .

Part A

What are the possible frequencies of A?

If there is more than one answer, separate them by commas.

Part B

What are the possible frequencies of C?

If there is more than one answer, separate them by commas.

Part C

What beat frequencies are possible when A and C are sounded together?

Express your answers using one significant figure. If there is more than one answer, separate them by commas.

Explanation / Answer

The possible frequencies of A are 396 Hz or 404 Hz

The possible frequencies of C are 394 or 406 Hz

The possible beats are:

2 Hz, or 10 Hz

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