A Whistle Produces Sound of Frequency of 1

question 162

Multiple Choice

A whistle produces sound of frequency of 1.00 kHz. If a listener moves with a speed of 30 m/s away from the whistle, what frequency does this person hear if the sound speed is 340 m/s?

• A) 1090 Hz
• B) 919 Hz
• C) 912 Hz
• D) 1000 Hz

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