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Physics (AS & A Level) · Feb / March 2017 · Paper 12 · Question 24

9702Progressive waves

The diagram shows two waves R and S. Wave R has an amplitude of 8 cm and a period of 30 ms. What are the amplitude and the period of wave S?

  1. Aamplitude 2 cm, period 10 ms
  2. Bamplitude 2 cm, period 90 ms
  3. Camplitude 4 cm, period 10 ms
  4. Damplitude 4 cm, period 90 ms

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Correct answer: C. amplitude 4 cm, period 10 ms

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