Intensity - distance from centre graph for single slit diffraction:

What are the 2 main properties of the graph we should know?

If the single slit is made narrower, then....

If wavelength decreases, then.....

Single slit vs Double slit :

What is another way to refer to fringe separation?

White light single slit diffraction notes:

Diagram of white light single slit diffraction (the bottom image, as the top is for monochromatic light) :