Sagot :
Thermal radiation is electromagnetic radiation emitted from all matter that is at a non-zero temperature in the wavelength range from 0.1 μm to 100 μm. It includes part of the ultraviolet (UV), and all of the visible and infrared (IR).
Thermal radiation is electromagnetic radiation emitted from all matter that is at a non-zero temperature in the wavelength range from 0.1 μm to 100 μm. It includes part of the ultraviolet (UV), and all of the visible and infrared (IR).