Wave Length Frequency of Rays

Wave Length Frequency of Rays

INFRARED:Infrared (IR) light is electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 700 nanometres (nm) to 1 mm. This range of wavelengths corresponds to a frequency range of approximately 430 THz down to 300 GHz,[1] and includes most of the thermal radiation emitted by objects near room temperature. Infrared light is emitted or absorbed by molecules when they change their rotational-vibrational movements. The existence of infrared radiation was first discovered in 1800 by astronomer William Herschel.

ELECTROMAGNETIC SPECTRUM:

Name Wavelength Frequency (Hz) Photon Energy (eV)

Gamma rayless than 0.01 nm more than 10 EHz 124 keV – 300+ GeV

X-Ray 0.01 nm – 10 nm 30 EHz – 30 PHz 124 eV – 124 keV

Ultraviolet 10 nm – 380 nm 30 PHz – 790 THz 3.3 eV – 124 eV

Visible 380 nm–700 nm 790 THz – 430 THz 1.7 eV – 3.3 eV

Infrared 700 nm – 1 mm 430 THz – 300 GHz 1.24 meV – 1.7 eV

Microwave1 mm – 1 meter 300 GHz – 300 MHz 1.24 µeV – 1.24 meV

Radio 1 mm – 100,000 km 300 GHz – 3 Hz 12.4 feV – 1.24 meV