Light travels very rapidly in straight lines from its source and is reflected, refracted, or absorbed.
White light is a mixture of colors that can be separated into a spectrum by a prism.
The spectrum of visible light colors is the only part of the electromagnetic spectrum of energy moving through space that our eyes are able to detect. Light can be described in terms of both the wave and particle theories, with light energy proportional to frequency and inversely proportional to wavelength. The Regents of the University of California. All rights reserved.