Home Physics Transmission of Heat Radiation (General, Kirchoff's Law, Black Body) At a certain temperature for given wave leng…
Physics Transmission of Heat Radiation (General, Kirchoff's Law, Black Body) MCQ (Single Correct)

At a certain temperature for given wave length, the ratio of emissive power of a body to emissive power of black body in same circumstances is known as

A
Relative emissivity
B
Emissivity
C
Absorption coefficient
D
Coefficient of reflection

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The correct answer is:
B
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