Learn about the general properties, types and applications of electromagnetic radiations, which are transverse waves with electric and magnetic fields. Explore how they are used in remote sensing, and how the atmosphere affects their transmission and reception. Electromagnetic Radiation What is a Electromagnetic (EM) Radiation? Electromagnetic radiation is a form of energy that is all around us and takes many forms, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays. Before 1873, electricity and magnetism were thought to be two different forces. Electromagnetic Waves in the Electromagnetic Spectrum The entire range (electromagnetic spectrum) is given by radio waves, microwaves, infrared radiation, visible light, ultra-violet radiation, X-rays, gamma rays and cosmic rays in the increasing order of frequency and decreasing order of wavelength. EMR Meaning: In physics, electromagnetic radiation (EM radiation or EMR) alludes to the waves (or their quanta, photons) of the electromagnetic field, spreading (emanating) through space, conveying electromagnetic radiant energy.
