Two speakers in a stereo emit identical pure tones.As you move around in front of the speakers,you hear the sound alternating between loud and zero.This occurs because of diffraction.

Question

Quizplus · Accepted Answer

This phenomenon is actually caused by interference between the two sound waves. Diffraction refers to the bending of sound waves around obstacles, and while it can affect the overall sound quality, it does not produce the loud/zero alternation effect described in this scenario.

Two Speakers in a Stereo Emit Identical Pure Tones