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Physics, 14.04.2020 17:59 egaitapierreval

Two speakers face each other, and they each emit a sound of wavelength λ. One speaker is 180∘ out of phase with respect to the other. If we separate the speakers by a distance 1.5λ, how far from the left-most speaker should we place a microphone in order to pick up the loudest sound? Ignore reflections from nearby surfaces.

A. 3/4 lambda
B. 0 lambda
C. 1/2 lambda
D. 1/4 lambda
E. 1 lambda

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