Explanation:
Infrared region amplifies from the nominal red edge of the visible spectrum. whose wavelength range from 700 nano-meters (nm) to 1 millimeter (mm). and the range of frequency is from 430 terahertz to 300 GHz.
in EM spectrum infrared region is larger than the visible.
further this region is divided into near-infrared, short wavelength infrared, mid-wavelength infrared, long-wavelength infrared and far infrared.
