# Light beam question

by nophun6
Tags: beam, light
 HW Helper P: 1,454 Since the wavelengths for the two colours are not given you should choose your own, maybe use $\lambda_{red}=700\ nm,\ \lambda_{blue}=\ 500\ nm$, and then work the diffraction angles out for the various orders for each of the two colours. It seems this is more a qualitative than quantitative question in spite of the given grating spacing.