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Links for the 12th Chapter

 

This video shows an amazing effect you can get with reflection.

This video shows you how a curved mirror reflects parallel light rays.

This video shows you how a parabolic reflector can do the same thing for sound waves.

This video goes through several examples of ray tracing for concave and convex mirrors.

This video explains why a light wave bends when it enters a new medium.

This video shows you a light ray refracting at different angles.

This video shows how refraction can change the apparent position of an object.

This video gives an example of a Snell’s Law problem.

This video shows you how a converging lens refracts parallel light rays.

This video shows you how a diverging lens refracts parallel light rays.

This video gives two examples of ray tracing for a converging lens.

This video gives three examples of ray tracing for a diverging lens.

Extra Practice Problems for Chapter 12
The solutions for these problems can be found here.