Modelling
Physics 101 - Light
Visible light, electromagnetic spectrum <\p>
Physics 101 - LED
Not monochromatic, circuite explanation <\p>
Physics 101 - Wavelength
The given wavelength $\lambda$ for a lightsource can be found by XX INSERT FORMULA HERE XX, by knowing the grid spacing, $d$ and angle, $\theta$.
Physics 101 - (Bio)laser
Mirrors, filters <\p>