Physics Classroom
The Physics Classroom: Light Waves and Color: Thin Film Interference
Students investigate an example of interference that provides further evidence in support of the wavelike behavior of light.
Exploratorium
Exploratorium: Critical Angle
Students can see light reflected and refracted in this demonstration. They will also discover the total internal reflection of light.
Georgia State University
Georgia State University: Hyper Physics: Total Internal Reflection
This physics department site provides a definition and explanation of the phenomenon of total internal reflection. Includes a diagram and an equation for calculating the critical angle for light approaching a surface.
Science4Fun
Science4 Fun: How Rainbows Work
Learn how rainbows work by reading this illustrated explanation.
Georgia State University
Georgia State University: Hyper Physics: Polarization by Absorption
The operation of Polaroid filters on a pair of sunglasses is shown.