LightIntroductionWithout light there would be no vision or color.Light reflected from objectsaround us makes things visible.LightLight is a form of electromagnetic radiant energy visible to the human eye.The visual spectrum, what we see, is only a small part of the entireelectromagnetic spectrum.Figure 2-1 shows the range of the electromagnetic spectrum.Figure 2-1.—The position of visible light in theelectromagnetic spectrum.White light refracted through a prism reveals the colors that comprise thevisible spectrum.Figure 2-2 shows visible light as refracted through a prism.Figure 2-2.—The refraction of light by a prism.Continued on next page2-4
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
