A police car horn emits a sound at a frequency 240 Hz, when the car is at rest. If the speed of the sound is 330 m/s the frequen

A police car horn emits a sound at a frequency 240 Hz, when the car is at rest. If the speed of the sound is 330 m/s the frequency heard by an observer who is approching the car at a speed of 11 m/s is
A. 248 Hz
B. 244 Hz
C. 240 Hz
D. 230 Hz

A police car horn emits a sound at a frequency 240 Hz, when the car is at rest. If the speed of the sound is 330 m/s the frequency heard by an observe

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