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

  • question_answer
    A hot body will radiate heat most rapidly if its surface is [UPSEAT 1999, 2000]

    A)            White & polished               

    B)            White & rough

    C)            Black & polished                 

    D)            Black & rough

    Correct Answer: D

    Solution :

               Black and rough surfaces are good absorber that?s why they emit well. (Kirchoff's law).


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