Question on: JAMB Physics - 2020
If a source of solid is moving, a stationary listener will hear a sound of different frequency. This is called?
A
doppler effect
B
resonance
C
ultra sound
D
rarefaction
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Correct Option: A
The Doppler effect is the change in frequency of a wave in relation to an observer who is moving relative to the wave source. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842. Wikipedia
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