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# What is the Doppler effect? Frequency of the sound shift.

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What is the Doppler effect? Assume that a sound source is moving toward a sound detector at a speed of 60 m/s. According to the stationary detector, by what fraction does the frequency of the sound shift? Assume the speed of sound to be 330 m/s. Will the frequency appear to be higher or lower? Assume now police operated microwave radar. How fast would a car need to be moving in order to achieve the same frequency shift fraction? Assume the speed of light to be 3 X 10 to 8th m/s.

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Doppler Effect: If there is relative motion between a source and observer, the observed frequency will change according ...

#### Solution Summary

The Doppler effect and frequency of the sound shift is examined.

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