Refraction and Lenses
Our Refraction and Lenses unit represents an effort to apply optics principles to an understanding of refraction, Snell's law, total internal reflection, dispersion, mirage formation, converging and diverging lenses, and image formation. The set of Video Tutorials below describe all sorts of applications of refraction principles to the analysis of physical situations.

Just so know, you've entered the
Construction Zone. This is the section of the website that is currently being built. We have provided links to all finished videos. Video titles without links are videos that we plan to eventually create. The content is coming ... we promise! The best way to get the newest content is to subscribe to our
YouTube Channel.
Refraction Action
Optical Density, Light Speed, and n
The Direction of Bending
The Lone Exception
Refraction and Angles
Snell's Law of Refraction
Refraction and Ray Tracing
Determining the Index of Refraction
Boundary Behavior
Total Internal Reflection
The Critical Angle
Light Dispersion
Rainbow Formation
Mirages
Refraction by Lenses
Lenses and Image Formation
Converging Lenses: Ray Diagrams
Converging Lenses: Object-Image Relations
Diverging Lenses: Ray Diagrams
Diverging Lenses: Object-Image Relations
Mathematics of Lenses
Refraction and the Eye
Accommodation and Vision
Farsightedness and Its Correction
Nearsightedness and Its Correction
Subscribe to our channel and receive notifications of new videos when they come out.
