What is the total absorptivity of the surface

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The spectral absorptivity of an opaque surface and the spectral distribution of radiation incident on the surface are depicted below.

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What is the total absorptivity of the surface? If it is assumed that ελ = αλ and that the surface is at 1000 K, what is its total emissivity? What is the net radiant heat flux to the surface?

Reference no: EM131243505

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