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A-LevelPhysicsWaves9702/12 · May/June 2016 · Q231 Mark

A source of sound of frequency 1000 Hz moves away from a stationary observer at a speed of 30.0 ms⁻¹. The speed of sound is 330 ms⁻¹. What is the frequency of the sound heard by the observer?

A909 Hz

B917 Hz

C1090 Hz

D1100 Hz

✓ Correct answer

B: 917 Hz

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About this question

Topic: Waves, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2016 Paper 1 Variant 2, question 23.

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