Electromagnetic radiation refers to waves of electric and magnetic fields that can travel through space without needing any medium. It includes various forms such as radio waves, microwaves, visible light, X-rays, and gamma rays.
Related terms
Photon: A particle of light that carries energy and behaves both as a wave and a particle.
Frequency Spectrum: The range of frequencies or wavelengths that make up the electromagnetic spectrum.
Absorption: The process by which matter takes in electromagnetic radiation, converting it into other forms of energy.