Electromagnetic Spectrum
Infrared Waves
(of electromagnetic radiation) having a wavelength just greater than that of the red end of the visible light spectrum but less than that of microwaves. Infrared radiation has a wavelength from about 800 nm to 1 mm, and is emitted particularly by heated objects.
Electromagnetic Spectrum
Generally, electromagnetic radiation is classified by wavelength into radio wave, microwave, terahertz (or sub-millimeter) radiation, infrared, the visible region that is perceived as light, ultraviolet, X-rays and gamma rays. The behavior of EM radiation depends on its wavelength.
Visible Waves
This "visible light" corresponds to a wavelength range of 400 - 700 nanometers (nm) and a color range of violet through red. The human eye is not capable of "seeing" radiation with wavelengths outside the visible spectrum.
Ultraviolet Waves
Ultraviolet (UV) light has shorter wavelengths than visible light. Although UV waves are invisible to the human eye, some insects, such as bumblebees, can see them.
X-ray Waves
X-rays are electromagnetic waves with wavelengths in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×10 16 Hz to 3×10 19 Hz) and energies in the range 100 eV to 100 keV . They are shorter in wavelength than UV rays and longer than gamma rays.
Radio Waves
an electromagnetic wave of a frequency between about 104 and 1011 or 1012 Hz, as used for long-distance communication.
Microwaves
an electromagnetic wave with a wavelength in the range 0.001-0.3 m, shorter than that of a normal radio wave but longer than those of infrared radiation. Microwaves are used in radar, in communications, and for heating in microwave ovens and in various industrial processes.
Radio Waves
are the ones that help us communicate in different ways.
Gamma-Ray
can be used for cancer treatment.
Gamma Rays
gamma ray in Science. gamma ray. A stream of high-energy electromagnetic radiation given off by an atomic nucleus undergoing radioactive decay. Because the wavelengths of gamma rays are shorter than those of x-rays, gamma rays have greater energy and penetrating power than x-rays.
Radio
has longest waves
Infrared
it has safe heat
Micro
measured in centimeters
Visible
only electromagnetic waves we can see
Ultraviolet
protect us from the sunburns.
Infrared
short thermal waves are used in remote controls.
X-ray
small and high energy
Infrared
thermal long waves
X-ray
they can also hurt us, so doctors do what they can not to use them.
Ultraviolet
used in Doppler weather systems