Physics (AS & A Level) · Oct / Nov 2022 · Paper 13 · Question 27

A sound wave of wavelength 0.50 m passes through a doorway of width 1.0 m between two rooms. Which change increases the amount of diffraction that takes place?

1. ADouble the amplitude of the sound wave.
2. BDouble the width of the doorway.
3. CHalve the frequency of the sound wave.
4. DHalve the period of the sound wave.

As printed in the paper