Question

What is Doppler effect?​

Answer 1

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The Doppler effect of change in frequency and wavelength of a wave in relation to an observer who is moving relative to the wave source. It named after the Austrian physicist Christin Doppler who described the phenomenon in 1842 .

A common example of the flower shaped is the change of h here when a vehicle sounding a horn approaches and receipts from an observed compare to the emitted frequency the received frequency is higher during the approach identical at the instant of passing by and lower during the recession..
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Answer 2

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DOPPLER EFFECT ➡

The Doppler effect is observed whenever the source of waves is moving with respect to an observer. The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for observers towards whom the source is approaching and an apparent downward shift in frequency for observers from whom the source is receding. It is important to note that the effect does not result because of an actual change in the frequency of the source.

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