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

  • question_answer
    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                        [RPMT 1997]

    A)            Relative emissivity             

    B)            Emissivity

    C)            Absorption coefficient     

    D)            Coefficient of reflection

    Correct Answer: B

    Solution :


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