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Physics (AS & A Level) · May / June 2023 · Paper 11 · Question 21

9702Progressive waves

The graph shows the variation with time of the displacement of a particle in a progressive wave. Two measurements, x and y, are labelled on the graph. What do x and y represent?

  1. Ax: amplitude; y: period
  2. Bx: frequency; y: period
  3. Cx: amplitude; y: wavelength
  4. Dx: frequency; y: wavelength

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Correct answer: A. x: amplitude; y: period

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