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Definition of "Infrared Radiation" |
Optical radiation for which the wavelengths are longer than those for visible radiation and shorter than those for radio waves. It corresponds to invisible heat radiation. / Electromagnetic radiation whose wavelengths lie in the range from 0.75 micrometer to 1000 micrometers. / Infrared radiation refers to electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 700 nanometers to 1 mm. This range of wavelengths corresponds to a frequency range of approximately 430 THz down to 300 GHz.Most of the thermal radiation emitted by objects near room temperature is infrared. / Advanced television is an array of features enabled by digital technology that significantly change analog television as it has come to be known during the 20th century. |
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