Geometric Optics deals with wave phenomena/behaviours that involves the behaviour of waves as they encounter different media, this includes reflection, refraction and dispersion. This page covers the key principles, as well as some familiar applications.
Apart from what is provided below, a useful interactive that explores a number of these can be found at the Ray Optics Simulator
Apart from what is provided below, a useful interactive that explores a number of these can be found at the Ray Optics Simulator
Reflection Explained
video coming soon