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a) What fraction of the radiation is from 0 to 4 micrometers? What would the fraction be from 4 to 6 micrometers? b) What is the emissivity for this surface? c) What is the emissive power of this surface, in W/m2?

a) What fraction of the radiation is from 0 to 4 micrometers? What would the fraction be from 4 to 6 micrometers? b) What is the emissivity for this surface? c) What is the emissive power of this surface, in W/m2?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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a) What fraction of the radiation is from 0 to 4 micrometers? What would the fraction be from 4 to 6 micrometers?

b) What is the emissivity for this surface?

c) What is the emissive power of this surface, in W/m2?

A diffuse surface is characterized by the spectral hemispherical emissivity distribution shown in the figure below, where & = 0.75, &2 = 0.10, and 3 = 0.8. For a surface temperature of T, = 300 K, what is the emissive power for the surface? 0 0 & 2 & 4 6 λ (μm) E3 8 10
Transcribed Image Text:A diffuse surface is characterized by the spectral hemispherical emissivity distribution shown in the figure below, where & = 0.75, &2 = 0.10, and 3 = 0.8. For a surface temperature of T, = 300 K, what is the emissive power for the surface? 0 0 & 2 & 4 6 λ (μm) E3 8 10
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