Engineering :: Heat Transfer

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The statement that the emissivity and absorptivity of a surface is surrounded by its own temperature are the same for both monochromatic and total radiation, is known as

[A].	Stefan Boltzman low	[B].	Kirchhoff's law
[C].	D'Alembert's rule	[D].	Lambert law
[E].	Law of emissivity

Answer: Option B

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