Radio waves were first predicted by the theory of electromagnetism that was proposed in 1867 by Scottish mathematical physicist James Clerk Maxwell. His mathematical theory, now called See more

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

Since radio frequency radiation has both an electric and a magnetic component, it is often convenient to express intensity of radiation field in terms of units specific to each component. The unit volt per meter (V/m) is used for the electric component, and the unit … See more

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

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

Radio waves are non-ionizing radiation, which means they do not have enough energy to separate electrons from atoms or See more