A Whistle Produces Sound of Frequency of 1

question 125

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

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