

Light is considered as waves of electric and magnetic forces that travel as waves. There are seven categories: Gamma Ray Waves, X-ray Waves, Ultraviolet Light Waves, Visible Light Waves, Infrared Waves, Microwaves, and Radio Waves.
These are categorized by their frequencies:

They are classified by the length of the wave (the distance between two peaks), and by the frequency, or number of high points that pass by per second. Higher frequencies (gamma rays, X-rays, etc.) carry more energy.
The formula for determining the wavelength is:
| Velocity of Light | |
| Wavelength= | ___________________ |
| Frequency |

Color used in the above two images is not meant to portray the color spectrum associated with the electromagnetic spectrum, but is for visual effect only. For more information about color and light, visit these links :
YPOP - Vew our Sun through different wavelengths:
And then view our Sun through different filters.
More information about electromagnetic spectra can be found at SCIENCE HYPERMEDIA, INC