Physics (AS & A Level) · May / June 2019 · Paper 12 · Question 29

Monochromatic light is directed at a diffraction grating, as shown. Which diagram could show all the possible directions of the light, after passing through the grating, that give maximum intensity?

1. ADiagram A
2. BDiagram B
3. CDiagram C
4. DDiagram D

As printed in the paper