Explain how the Doppler effect is used by the police to measure the speed of a car.
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whenever a car go with a very high speed then police have a special tracker which is very helpful to detect what speed they are going in which they use Doppler Effect so basically what happened in this Doppler Effect is that whenever the police takes the gun through which they detect the speed and trigger the target at that time ultrasonic sound passes from the gun by which it reflect from the car and at the speed from for the exact time from which it come this time is used to detect the speed of the car and this is The Doppler Effect
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amydrake13:
I found my answer and it does not match yours exactly...but I thank you for your time and effort. This is the answer : A Doppler radar uses reflected microwaves to determine the speed of distant moving objects. It does this by sending out waves with a frequency, and then analyzing the reflected wave for frequency changes.
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