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Physics (AS & A Level) · May / June 2016 · Paper 11 · Question 25

9702Diffraction

Continuous water waves are diffracted through a gap in a barrier in a ripple tank. Which change will cause the diffraction of the waves to increase?

  1. Aincreasing the frequency of the waves
  2. Bincreasing the width of the gap
  3. Creducing the wavelength of the waves
  4. Dreducing the width of the gap

As printed in the paper

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Correct answer: D. reducing the width of the gap

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