Question: 3) Consider an opaque, diffuse surface for which the spectral absorptivity and irradiation are as follows: 5000 0.8 (Wr.WM) 0.4 0 1 2 3 4

3) Consider an opaque, diffuse surface for which the spectral absorptivity and irradiation are as follows: 5000 0.8 (Wr.WM) 0.4 0 1 2 3 4 5 2 4 6 8 10 2 (um) 2. (um) What is the total absorptivity of the surface for the prescribed irradiation? If the surface is at a temperature of 500 K, what is its emissive power? How will the surface temperature vary with time, for the prescribed conditions

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