Bright rainbows can be formed to fuel a classroom discussion of diffraction. These holographically produced replica gratings have 750 lines per millimeter and are enclosed in durable 35mm glass slide mounts. We also offer special volume discounts when you order 10 or more different titles. Check out the whole series. Reflection and Refraction Mirrored and diffuse reflection are compared.
Refraction is demonstrated using a water tank.
The interference of light waves is demonstrated with laser light, and related to the colors of thin films. 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.