Physics (AS & A Level) · May / June 2021 · Paper 13 · Question 23

The graph shows the variation with time of the displacement of an air particle as a progressive sound wave passes through the air. The speed of sound in air is 330 m s⁻¹. What is the wavelength of the wave?

1. A6.6 m
2. B8.3 m
3. C20 m
4. D25 m

As printed in the paper