Electromagnetic Spectrum, Unguided Media of Transmission.

Light actually originates from the accelerated motion of electrons of atom. Atoms emit light in tiny packets of energy called photons. Photons move through space as electromagnetic waves, which are a form of energy with magnetic and electrical components. The electromagnetic waves travels at the same speed of light (c) through vacuum, no matter what their frequency the number of oscillations per second of a wave is called its frequency, f, and is measured in…

"Electromagnetic Spectrum, Unguided Media of Transmission."