A beam of light contains all wavelengths between 490 nm and 600 nm and is incident on a diffraction grating with 200 lines/mm. If two consecutive orders are overlapping, what can you say about the angles θ of the high and low wavelength light from the two orders?
What is the lowest order that is overlapped by another order?
What is the highest order for which the complete wavelength range of the beam is present?
What is the greatest angle at which the light with the shortest wavelength appears? (in degrees)