JEE Main & Advanced Physics Transmission of Heat Question Bank Radiation General Kirchoff's law Black body

  • question_answer
    Relation between emissivity \[e\] and absorptive power \[a\] is (for black body)

    A)            \[e=a\]                                   

    B)            \[e=\frac{1}{a}\]

    C)            \[e={{a}^{2}}\]                    

    D)            \[a={{e}^{2}}\]

    Correct Answer: A

    Solution :

               For a black body emissivity = absorptive power.


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