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klemol [59]
3 years ago
13

In the early 19th century Christian Doppler, an Austrian physicist, proposed a theory regarding the properties of a moving sourc

e of sound. This is now known as Doppler’s law or the Doppler effect. What does this law state?
Physics
2 answers:
svlad2 [7]3 years ago
6 0

The answer is D) The frequency of a moving source of sound is greater as it approaches an observer.

vovangra [49]3 years ago
5 0
<span>The Doppler effect is the effect produced by a source of sound waves that is moving relative to an observer. There sound will have a higher pitch as it approaches the observer, and a lower pitch as iits moves away from the observer. The effect is commonly experienced as an ambulance passes.</span>
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