Assignment task: Derive the equation that could be used to calculate the linear dispersion of the monochromator that is operated at nearly normal incidence and small angles of diffraction using the following variables:
(a) Diffraction grating with grove density
(b) Focal Length
(c) Angular Dispersion
We can assume that the angular dispersion operates independent of the Wavelength.
This would be applied to Flame-Atomic Absorption Spectroscopy. We can also assume that it will be first order.