Light is one of the most important sources for biological organisms (including us!) for information about the world. Although we think we understand light, the closer we look at it the more complex it seems. Three models of light have been developed and all continue to be useful in particular circumstances, depending on the system we are looking at, the scale, and what we want to do. 

To understand the context and motivation for the chapter, see the following page:

Here's the full Table of Contents of the chapter. The notation "(EX)" means that there is a worked example attached to that page. The notation "{WO}" means there is an activity (a Workout) attached to that page, usually one that involves working with a simulation.

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Last Modified: July 10, 2019