A vibrating guitar string emits a tone simultaneously with one from a 500-Hz tuning fork.If a beat frequency of 5 Hz results,what is the frequency of vibration of the string?
A)2 500 Hz
B)505 Hz
C)495 Hz
D)Either choice b or c is valid.

Question

Quizplus · Accepted Answer

The beat frequency is the absolute difference between the frequencies of the two sources. Therefore, the string could be vibrating at either 505 Hz or 495 Hz, both of which would result in a beat frequency of 5 Hz with the 500 Hz tuning fork.

A Vibrating Guitar String Emits a Tone Simultaneously with One