The electromagnetic spectrum is composed of electromagnetic radiations that exhibit different characteristics. Some have a longer wavelength than others. In addition, some have a higher penetration power than others. Gamma Rays, X-rays, Ultra Violet (UV), Visible light, Infra Red (IR) and Radio-waves are common examples. The special characteristics possessed by the electromagnetic make each of them unique. For example, the X-rays are widely used in the medical field due to its high penetration power (Bhusan 65). This paper outlines the various sources, characteristics, components and applications of IR.

The electromagnetic spectrum is composed of electromagnetic radiations that exhibit different characteristics. Some have a longer wavelength than others. In addition, some have a higher penetration power than others. Gamma Rays, X-rays, Ultra Violet (UV), Visible light, Infra Red (IR) and Radio-waves are common examples. The special characteristics possessed by the electromagnetic make each of them unique. For example, the X-rays are widely used in the medical field due to its high penetration power (Bhusan 65). This paper outlines the various sources, characteristics, components and applications of IR.