According to Kirchoff's law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a

According to Kirchoff's law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a Correct Answer Black body

Kirchhoff's law states that the emissivity and the absorptivity of a surface at a given temperature and wavelength are equal. 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 Kirchhoff's law.
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