_ The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as$?

_ The ratio of the emissive power and absorptive power of all bodies i

1.	_ The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as$?
A.	Wien's law
B.	Stefan's law
C.	Kirchhoff's law
D.	Planck's law
Answer» D. Planck's law

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_ The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as$?

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