A Sound Source of Frequency 1 000 Hz Moves at 50.0

question 68

Multiple Choice

A sound source of frequency 1 000 Hz moves at 50.0 m/s toward a listener who is at rest.What is the apparent frequency heard by the listener? (speed of sound = 340 m/s)

• A)853 Hz
• B)872 Hz
• C)1 150 Hz
• D)1 170 Hz

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