Physics (AS & A Level) · Feb / March 2017 · Paper 12 · Question 23
9702Doppler effect for sound waves
Which statement about light waves and sound waves is correct?
- ABoth light waves and sound waves show the Doppler effect.
- BLight waves can be diffracted but sound waves cannot be diffracted.
- CSound waves are transverse waves and light waves are longitudinal waves.
- DSound waves can travel in a vacuum but light waves cannot travel in a vacuum.
As printed in the paper
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Correct answer: A. Both light waves and sound waves show the Doppler effect.
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