A-LevelPhysicsWaves9702/12 · May/June 2021 · Q221 Mark
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. [Figure 22.1] What could be represented by the two graphs?
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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
✓ Correct answer
A: particles in a longitudinal wave with a compression and the nearest rarefaction separated by 10 cm
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