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Physics (AS & A Level) · Oct / Nov 2022 · Paper 12 · Question 28

9702Diffraction

In which situation does diffraction occur?

  1. AA wave bounces back from a surface.
  2. BA wave passes from one medium into another.
  3. CA wave passes through a gap in a barrier.
  4. DWaves from two identical sources are superposed.

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Correct answer: C. A wave passes through a gap in a barrier.

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