1 Answers

If a source of sound is moving, a stationary listener will hear…

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PHYSICS

If a source of sound 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

QUICK ANSWER…

A

DETAILS…  

Doppler effect is the change in frequency of sound waves observed by a stationary or moving observer, in relation to a moving sound source.

When a source of sound is moving, and an observer who is also moving or stationary hears varying sound frequencies, this phenomenon is called doppler effect.

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Now for the right answer to the above question:

  1. A is the right answer. doppler effect is the right term.
  2. B is incorrect.
  3. C is incorrect.
  4. D is incorrect.

KEY-POINTS…

You may please note this/these:

  • Doppler effect is the observation of different frequencies as a result of relative motion between the source and the observer.

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/ culled from 2020 JAMB-UTME physics past question 12 /

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