What Is the Frequency Does a Stationary Observer Hear When

question 50

Multiple Choice

What is the frequency does a stationary observer hear when a train approaches her with a speed of 30 m/s.The frequency of the train horn is 0.600 kHz and the speed of sound is 340 m/s.

• A)551 Hz
• B)600 Hz
• C)653 Hz
• D)658 Hz

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