Physics (AS & A Level) · Oct / Nov 2025 · Paper 14 · Question 26

For a progressive transverse wave, what describes the term diffraction?

1. Athe change in observed frequency of a wave due to a movement of the wave source
2. Bthe spreading of a wave as it passes through a gap or around an obstacle
3. Cwhen oscillations of a wave are confined to one plane
4. Dthe resultant displacement of two waves is equal to the sum of the displacements of the individual waves when the waves meet

As printed in the paper