Tuning fork A has a frequency of 440 Hz.When A and a second tuning fork B are struck simultaneously,four beats per second are heard.When a small mass is added to one of the tines of B,the two forks struck simultaneously produce two beats per second.The original frequency of tuning fork B was
A) 448 Hz
B) 444 Hz
C) 438 Hz
D) 436 Hz
E) 432 Hz
Correct Answer:
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