What is Electromagnetic radiation?
Propagating sinusoidal waves of electric and magnetic fields. Any sine wave is characterized by wavelength and frequency of oscillation. Based on these characteristics and their impact on matters, a wide range of electromagnetic waves is classified into the following categories: gamma- and X-radiation, UV radiation, visible and IR light, microwaves and radio waves. Electromagnetic waves can be harmful for living beings. Ionizing radiation is far more dangerous than any other type of radiation. Daily, we are exposed to ionizing radiation, but tiny portions of it we are subject to do not cause any considerable harm.