Physics · IGCSE · Edexcel · Pearson Edexcel International GCSE (9–1) Physics (Linear) — 4PH1 · Specification point · 3.8 · Waves · Properties of waves
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3.8 explain why there is a change in the observed frequency and wavelength of a wave when its source is moving relative to an observer and that this is known as the Doppler effect |