"Beats" in sound refer to:
A) interference of two waves of the same frequency
B) combination of two waves of slightly different frequency
C) reversal of phase of reflected wave relative to incident wave
D) two media having slightly different sound velocities
E) effect of relative motion of source and observer

Question

Quizplus · Accepted Answer

Beats in sound refer to the combination of two waves of slightly different frequency. This results in periodic fluctuations in the amplitude of the resulting wave, which are perceived as a pulsing or beating sound.

"Beats" in Sound Refer To