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Physics (AS & A Level) · May / June 2025 · Paper 11 · Question 29

9702Stationary waves

One wave has an amplitude of 2A. A second wave has an amplitude of A/2. The waves are otherwise identical. The two waves travel in opposite directions and overlap. What is the ratio (maximum amplitude of combined wave)/(minimum amplitude of combined wave)?

  1. A3/2
  2. B5/3
  3. C5/2
  4. D4

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Correct answer: B. 5/3

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