Radio Waves
λ = few cms
Microwaves
λ = 10^-3 m
Infrared
λ = 10^-6 m
Visible Waves
λ = 5x10^-7 m
Ultraviolet
λ = 10^-9 m
X-Rays
λ = 10^-12 m
Gamma Rays
λ = 10^-12 m
Non-Ionising Radiation
Ionising Radiation
All Electromagnetic Waves
Radio waves are formed when
Electrons are oscillated by electric fields in aerials