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Asked by Robert

An observer is located directly between two speakers, located 20m apart. The speakers are in phase with each other, and both are emitting a sound with a frequency of 60Hz. How far away from the centre should the observer move to get the first destructive interference?
7 years ago

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Answered by bobpursley
you want them to be 1/2 wavelength off.
on path length. ..
7 years ago

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