We see the Visible light portion of the EMS, wavelengths of 400 nm to 700 nm. The wavelengths longer than visible light include Radio, Microwave, and Infrared (IR) waves. Visible Light ; sometimes called ROYGBIV , includes Red, Orange, Yellow, Green, Blue, Indigo, and Violet. Visible light is a very small part of the EMS. Shorter Wavelengths than visible light include Ultraviolet (UV), X-rays, and Gamma Rays. Only radio, some IR, and visible light gets through Earth’s atmosphere.
A mnemonic to remember the EMS in correct order from the longer to shorter wavelengths is R eal M en I n V irginia U se X tra G lue.