Through illustrated examples and interactive practice problems, students explore the details of Snell's Law.

In this illustrated physics tutorial, students investigate several of the types of problems that you will have to solve, and learn the task of tracing the refracted ray if given the incident ray and the indices of refraction.

In this interactive physics tutorial, students will learn about a mathematical equation relating these two angles and the indices of refraction of the two materials on each side of the boundary.

This page is a continuation of a tutorial about light reflection and refraction. It contains a diagram and suggestions on how to derive Snell's Law, which governs the refraction of light in a medium. For background to this derivation,...

Contains a four step procedure to deriving the law of reflection using algebra, Fermat's principle, and calculus (simple derivatives). This is good for an in-class theoretical exercise.

Informational site provides illustrated tutorial of light reflection. Also discusses the law of reflection.

A video and a short quiz on the properties of light.

In this illustrated physics tutorial, students investigate the connection between light reflection and light refraction.

Defines the refraction of light and provides an applet for investigating it.

A fairly short biographical sketch of Willebrord Snell (1591-1626 CE). Discusses his upbringing, education and professional life.

[Free Registration/Login Required] Move the light source to see what happens to the reflected ray as you change the angle of the incident ray.

In this exploration, students will investigate how light reflects off smooth surfaces, learn about angles of reflection, and apply that knowledge in a relay experiment.

An interactive Java applet which allows the user to investigate the path of light through a lens shape object. The shape of the object, the index of refraction of the material, and the location of the incident rays can be altered.

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.

An in-depth discussion on reflection of light can be found here. Among the topics discussed include are the difference between specular and diffuse reflection, concave and convex mirrors, facets, total internal reflection, and much more....

Reflection and refraction are explained with an experiment that uses a sheet of paper, cardboard, and other common materials.

This unit helps students learn to apply the concept of solar energy conservation. They are introduced to angles and their effect on the amount of light reflected, and they will also design, construct, manipulate, critique, evaluate and...

Manipulate the incident angle, color of light, wavelength, and medium to see how the refracted angle is affected.

An investigation into the total internal reflection of light, using a laser pointer. Accompanied by an explanation of what's happening, a discussion of Snell's Law, and links to additional information.

In this activity, students actually find the angles of reflection and incidence.

This PDF document from the Centers for Disease Control and Prevention contains detailed information about pertussis from several different angles. Information is provided on the clinical features, the complications, the incidence and the...

The meaning and cause of refraction--as well as Snell's law of refraction--are discussed. Includes an interactive problem-solving form in which visitors relate angles of refraction to the incident angle and the indices of refraction.