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Physics (AS & A Level) · May / June 2026 · Paper 12 · Question 26

9702Diffraction

Water waves diffract as they pass through a gap. Which combination produces the greatest amount of diffraction?

  1. Awavelength 10^-1 m, gap width 10^0 m
  2. Bwavelength 10^-1 m, gap width 10^-2 m
  3. Cwavelength 10^0 m, gap width 10^0 m
  4. Dwavelength 10^0 m, gap width 10^2 m

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Correct answer: C. wavelength 10^0 m, gap width 10^0 m

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