Electromagnetic radiation is classified into several types according to the frequency of its wave ; these types include -LRB- in order of increasing frequency and decreasing wavelength -RRB- : radio waves , microwaves , terahertz radiation , infrared radiation , visible light , ultraviolet radiation , X-rays and gamma rays .

Electromagnetic radiation is classified into types according to the frequency of the wave : these types include , in order of increasing frequency , radio waves , microwaves , terahertz radiation , infrared radiation , visible light , ultraviolet radiation , X-rays and gamma rays .
