Two loudspeakers, A and B are driven by the same amplifier and emit sinusoidal waves in phase. Speaker B is 2.00 m to the right of speaker A. The frequency of the sound waves produced by the loudspeakers is 206 Hz. Consider point P between the speakers and along the line connecting them, a distance x to the right of speaker A. Both speakers emit sound waves that travel directly from the speaker to point P.
a) For what values of x will destructive interference occur at point P?
b) For what values of x will constructive interference occur at point P?
c) Interference effects like those in parts A and B are almost never a factor in listening to home stereo equipment. Why not?
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A step-by-step solution is provided to determine what values of x will be either destructive or constructive inference occur at point P.