Mathematics, 30.11.2019 01:31, treavonknorton

The emissivity of a surface coated with aluminum oxide can be approximated to be 0.15 for radiation at wavelengths less than 5 μm and 0.9 for radiation at wavelengths greater than 5 μm. determine the average absorptivity of this surface at 1040.00 k

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The emissivity of a surface coated with aluminum oxide can be approximated to be 0.15 for radiation...