Physics (AS & A Level) · May / June 2018 · Paper 13 · Question 25

A water wave in a ripple tank is diffracted as it passes through a gap in a barrier. Which two factors affect the angle of diffraction of the wave?

1. Athe amplitude and frequency of the incident wave
2. Bthe amplitude of the incident wave and the width of the gap
3. Cthe wavelength and amplitude of the incident wave
4. Dthe wavelength of the incident wave and the width of the gap

As printed in the paper