A-LevelPhysicsWaves9702/12 · May/June 2023 · Q211 Mark
A longitudinal wave is travelling from left to right. The graph shows the variation of the displacement of the particles with distance along the wave at one instant in time. Displacements to the right are positive; displacements to the left are negative. Which labelled point represents a compression?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
A[Point A]
B[Point B]
C[Point C]
D[Point D]
✓ Correct answer
B: [Point B]
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