Monochromatic light is incident normally on a diffraction grating that has 5.00×105 lines m−15.00 \times 10^5\text{ lines m}^{-1}5.00×105 lines m−1. The angle between the second-order diffraction maxima is 56∘56^\circ56∘.
What is the wavelength of the light?
235 nm235\text{ nm}235 nm
469 nm469\text{ nm}469 nm
829 nm829\text{ nm}829 nm
939 nm939\text{ nm}939 nm
