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Physics (AS & A Level) · May / June 2025 · Paper 13 · Question 29

9702Stationary waves

Two waves of the same type overlap. When does the principle of superposition apply?

  1. Aalways
  2. Bonly when the waves have the same amplitude
  3. Conly when the waves travel in opposite directions
  4. Donly when the waves have the same frequency

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Correct answer: A. always

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