What is the Doppler effect? Give an example.

1.	What is the Doppler effect? Give an example.
Answer» The apparent change in the frequency of sound due to the relative motion between the source and the observer is called the Doppler effect. E.g: The apparent frequency of the whistle of a train increases as it. approaches an observer on the platform and decreases when the train passes the observer.

Answer»

The apparent change in the frequency of sound due to the relative motion between the source and the observer is called the Doppler effect.

E.g: The apparent frequency of the whistle of a train increases as it. approaches an observer on the platform and decreases when the train passes the observer.

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What is the Doppler effect? Give an example.

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