Physics (AS & A Level) · May / June 2021 · Paper 12 · Question 22
9702Transverse and longitudinal waves
Two particles in a progressive wave are a distance 10 cm apart. The two graphs show the variation with time t of the displacement d of the two particles. What could be represented by the two graphs?
- Aparticles in a longitudinal wave with a compression and the nearest rarefaction separated by 10 cm
- Bparticles in a longitudinal wave with a compression and the nearest rarefaction separated by 20 cm
- Cparticles in a transverse wave with a peak and the nearest trough separated by 20 cm
- Dparticles in a transverse wave with two adjacent peaks separated by 10 cm
As printed in the paper
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Correct answer: A. particles in a longitudinal wave with a compression and the nearest rarefaction separated by 10 cm
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