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what is dopler?

what is dopler?

Grade:11

1 Answers

G Ashwin -
24 Points
8 years ago

the doppler effect is the change in frequency  of a wave (or other periodic event) for an observer moving relative to its source. It is commonly heard when a vehicle sounding a siren or horn approaches, passes, and recedes from an observer. The received frequency is higher (compared to the emitted frequency) during the approach, it is identical at the instant of passing by, and it is lower during the recession.

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