Two stationary tuning forks (350 and 352 Hz)are struck simultaneously.The resulting sound is observed to:
A)beat with a frequency of 2 beats/s
B)beat with a frequency of 351 beats/s
C)be loud but not beat
D)be Doppler shifted by 2 Hz
E)have a frequency of 702 Hz

Question

Quizplus · Accepted Answer

When two tuning forks with frequencies close together are struck simultaneously, they will produce a beat frequency equal to the difference between their frequencies. In this case, the beat frequency is 2 Hz because 352 Hz - 350 Hz = 2 Hz.

Two Stationary Tuning Forks (350 and 352 Hz)are Struck Simultaneously