what is the wavelength range in micro miter for infrared light? in what portion of this...
what is the wavelength range in micro miter for infrared light? in what portion of this range does the Earth receive IR from the sun? What are the wavelength limits for the thermal IR range?
Homework Answers
The wavelength range for infrared light is 700 nm - 1 mm
= 700*10-9 m - 1*10-3 m
= 0.7*10-6 m - 1000*10-6 m
= 0.7 micro miter - 1000 micro miter
The earth receives IR from the sun over the whole range (considering that the sun is a blackbody emitter), but the solar IR light becomes insignificant at longer wavelengths (~4 mm) compared to IR light emitted from the Earth or the Earth’s atmosphere.
The wavelength limits for the thermal IR range are from 5 micro miter - 100 micro miter.
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