Radio waves are radiated by charged particles when they are accelerated. Natural sources of radio waves include radio noise produced by lightning and other natural pro… See more

Radio waves in a vacuum travel at the speed of light c {\displaystyle c} . When passing through a material medium, they are slowed depending on the medium's permeabilit… See more

Radio waves are more widely used for communication than other electromagnetic waves mainly because of their desirable propagation properties, stemming from their large wavel… See more

In radio communication systems, information is transported across space using radio waves. At the sending end, the information to be sent, in the form of a time-varying ele… See more

Radio waves are non-ionizing radiation, which means they do not have enough energy to separate electrons from atoms or molecules, ionizing them, or break chemical bonds, cau… See more