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Unformatted text preview: -2 μm-1 ) from the earth’s surface over the 2μm to 10μm spectral region. Consider cases of the surface with reflectivity equal to 0.1, 0.5, and 0.9. Assume that the sun is a blackbody with a temperature of 6000K, and that the sun’s power density is reduced by a factor of 66790 from the sun to the earth. The earth is an opaque, gray body with a temperature of 300K. Neglect effects of the atmosphere. For all the three cases, find the wavelength at which the emitted and the reflected power densities are the same....
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This note was uploaded on 09/30/2010 for the course EEE 4306 taught by Professor Eisenstadt during the Spring '08 term at University of Florida.
- Spring '08