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.

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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