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Two Guitariasts - Beats

Two guitarists attempt to play the same note of wavelength 6.49 cm at the same time, but one of the instruments is slightly out of tune and plays a note of wavelength 6.52 cm instead. What is the frequency of the beat these musicians hear when they play together?

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f1 (from the first guitar) = wave velocity/wavelength = 345 m/s ...

Solution Summary

Calculation of beat frequency.