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Question

What is Doppler Effect? Mention the two applications of Doppler effect.


Solution

An apparent change in the frequency of a wave there is relative motion between the source and observer the Doppler Effect is produced. This phenomenon is known as Doppler Effect.
Two applications:
$$\bullet$$ Doppler Effect of light waves is used to track artificial satellites.
$$\bullet$$ Doppler effect of radio waves help in protecting the speed of vehicles to Radar gun.

Physics

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