Multiple Choice
A source emits sound with a frequency of 1000 Hz.It is moving at 20 m/s toward a stationary reflecting wall.If the speed of sound is 340 m/s an observer at rest directly behind the source hears a beat frequency of:
A) 3.0 Hz
B) 55 Hz
C) 63 Hz
D) 114 Hz
E) 118 Hz
Correct Answer:
Verified
Correct Answer:
Verified
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