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Three tuning forks of frequencies 100Hz,101Hz and 102Hz are sounded together. How many beats will be heard in one second?

If 2 forks are sounded together then the number of beats heard will be equal to the difference of their frequencies. But I don't know how to calculate the beat frequency if 3 forks are sounded together.

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# Homework Help: Beat frequency of 3 tuning forks

**Physics Forums | Science Articles, Homework Help, Discussion**