Conceptual Physics Alive! - Volume 9 - Light & Color, Reflec

Light and Color: The electromagnetic nature of light and the reason its speed changes when passing through transparent materials are explained. Several demonstrations illustrate the addition of different colors of light. Finally, the colors of everyday things such as the sky, sunset, and ocean are discussed. Segment length: 40 minutes

Reflection and Refraction: Mirrored and diffuse reflection are compared. Refraction is demonstrated using a water tank. The concepts of total internal reflection and light dispersion are discussed, leading to a demonstration of properties of a rainbow. Segment length: 41 minutes

Light Waves: The interference of light waves is demonstrated with laser light, and related to the colors of thin films. A discussion on polarization is illustrated using polarizing material. Segment length: 30 minutes