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Physics (AS & A Level) · Oct / Nov 2022 · Paper 11 · Question 28

9702Diffraction

A wave on the surface of water passes through a gap between two barriers and is diffracted, as shown. What happens when the frequency of the wave is halved?

  1. ALess diffraction is observed.
  2. BMore diffraction is observed.
  3. CThere is no diffraction.
  4. DThe same amount of diffraction is observed.

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Correct answer: B. More diffraction is observed.

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