See how a combination of colored light makes white light.
Light waves of different lengths are detected by the human eye and interpreted by the brain as colors. The longest waves are seen as red and the shortest wavelengths are seen as violet, while the intervening frequencies are seen as orange, yellow, green, cyan, blue, and, conventionally, indigo. White light is a mixture of all colors.
- Push the button to switch on the light.
- Turn the reflectors to guide the different lightbeams.
- Try to make white light by combining red, green and blue light.