Electromagnetic Spectrum: Uses and Hazards

Electromagnetic radiations are disturbances in an electric field. They travel as waves and move energy from one place to another. They can all travel through a vacuum and do so at the same speed. The waves cover a continuous range of wavelengths called the electromagnetic spectrum. The uses and hazards of the radiations in different parts of the electromagnetic spectrum depend on their wavelength and frequency.

Waves and the Wave Equation

Wave Phenomena

The Electromagnetic Spectrum

Communications