A light source emits two distinct wavelengths [1 = 430 nm (violet); 2 = 630 nm (orange)].

Question:

A light source emits two distinct wavelengths [λ1 = 430 nm (violet); λ2 = 630 nm (orange)]. The light strikes a diffraction grating with 450 lines/mm at normal incidence. Identify the colors of the first eight interference maxima on either side of the central maximum.