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Destructive Interference of Sound Waves

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Two adjacent sound sources each emit a frequency of 527[Hz] in air, where the velocity of sound is 349[m/s]. How much further back would source one have to move so that an observer in front of the two sources would hear no sound?

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Solution Summary

Two sound waves of the same frequency arriving at a point with the path difference of half wavelength undergo destructive interference.

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V =f*wavelength
wavelength = V/f
= 349/527
= 0.662 ...

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