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Question: 117 a sheet of silica glass transmits 90 of the...

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1-17 A sheet of silica glass transmits 90% of the radiation that is incident in the wavelength range between 0.33 and 2.5 um, and is essentially opaque to radia- tion having longer and shorter wavelengths. Estimate the percent of solar radiation that the glass wl transmit. (Consider the sun as a blackbody at 5780 K.) If the garden in a greehouse radiates as a black surface and is at 38°C, what percent of this radiation will be transmitted through the glass? Solar radiation -Glass Garden at38 C Answer: 82.1%; 0.001%
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