Consider the metallic surface of Example 12.7. Addi-tional
Chapter 12, Problem 12.37(choose chapter or problem)
Consider the metallic surface of Example 12.7. Addi-tional measurements of the spectral, hemisphericalemissivity yield a spectral distribution which may beapproximated as follows:(a) Determine corresponding values of the total, hemi-spherical emissivity ?and the total emissive powerEat 2000 K.(b) Plot the emissivity as a function of temperature for500T3000 K. Explain the variation.
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