What do you mean by Doppler's effect
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The Doppler effect is a phenomenon related to the effects of moving objects on an electromagnetic field. In this, an observer in relative motion to a wave experiences a change in the frequency or wavelength of the wave.
But after passing that point, the frequency or the pitch of the sound lowers with distance.
But after passing that point, the frequency or the pitch of the sound lowers with distance.
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The Doppler effect is the change in frequency or wavelength of a wave in relation to observer who is moving relative to the wave source.
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