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Doppler effect

Doppler effect

Why does an ambulance siren sound different as it passes you?
Admin User
Asked 1 week ago
1 answers
Answers (1)
Admin User
Answered 1 week ago
As the ambulance approaches, sound waves compress → higher pitch. As it moves away, waves stretch → lower pitch. This is the Doppler effect, used in weather radars and speed guns too.
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