Which one gives the monochromatic emissive power for black body radiat

1.	Which one gives the monochromatic emissive power for black body radiation ?
A.	Planck's law
B.	Kirchhoffs law
C.	Wien's law
D.	Stefan-Boltzman law
Answer» B. Kirchhoffs law

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Which one gives the monochromatic emissive power for black body radiation ?

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