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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
1. Determine the fraction of the total, hemispherical emissive power that leaves a diffuse surface in the directions ![]()
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2. The spectral distribution of the radiation emitted by a diffuse surface may be approximated as follows.

(a) What is the total emissive power?
(b) What is the total intensity of the radiation emitted in the normal direction and at an angle of 30Â Â Â Â Â Â Â Â Â Â from the normal?
(c) Determine the fraction of the emissive power leaving the surface in the directions π/4 ≤ θ ≤ π/2.
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