How is light considered “electromagnetic” radiation, What does it have to do with electromagnetism?

Question

How is light considered “electromagnetic” radiation, What does it have to do with electromagnetism?

In: Physics

Answer 1

light is considered EM radiation because it just simply is.

EM Radiation describes any radiation with electric and magnetic fields that vary simultaneously. (heres a gif of that [https://commons.wikimedia.org/wiki/File:EM-Wave.gif](https://commons.wikimedia.org/wiki/File:EM-Wave.gif), its a bit easier to wrap your head around seeing it that way). Basically light waves have two components, an electric component E, and a magnetic component B.

All light, both visible and invisible (like microwaves, radiowaves, UV rays, Xrays, and Gamma Rays) are made up with those same EM fields/waves, just with different Wavelengths/Frequencies.