At a specific temperature, the energy densities for a black body for t – McqOptions

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1.	At a specific temperature, the energy densities for a black body for three different wavelengths are 10, 19 and 7 units. For these wavelengths if the absorption coefficient of a body is respectively 0.8, 0.3 and 0.9 then the emissive powers of this body for these wavelengths are in the ratio
A.	0.42994212962963
B.	0.335520833333333
C.	8 : 5.7 : 6.3
D.	8 : 9.5 : 4.3
Answer» D. 8 : 9.5 : 4.3

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