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Physics (AS & A Level) · May / June 2017 · Paper 11 · Question 23

9702Progressive waves

A sound wave has a frequency of 2500 Hz and a speed of 1500 m s⁻¹. What is the shortest distance from a point of maximum pressure in the wave to a point of minimum pressure?

  1. A0.15 m
  2. B0.30 m
  3. C0.60 m
  4. D1.20 m

As printed in the paper

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Correct answer: B. 0.30 m

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