The Doppler Effect

1 mark · Normal

Which statement best describes the Doppler effect?

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Correct option: It is the apparent change in frequency of a wave due to the movement of the source.

Common mistakes: Misunderstanding the Doppler effect as a phenomenon only for light or only for sound.; Confusing with refraction or wave splitting.

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Marking points

B1 · 1 mark · Selects the correct statement describing the Doppler effect.

Worked solution

The Doppler effect is the apparent change in the frequency of a wave due to the relative motion between the source and the observer.