The phenomenon of beats results from sound
A)refraction.
B)reflection.
C)interference.
D)all of the above
E)none of the above

Question

Quizplus · Accepted Answer

Beats result from the interference of two sound waves that have slightly different frequencies. The waves interfere constructively and destructively, resulting in a periodic variation in the amplitude of the sound, which we hear as beats. Refraction and reflection can affect the direction of sound waves, but they do not directly contribute to the phenomenon of beats. Therefore, option C (interference) is the correct answer.

The Phenomenon of Beats Results from Sound