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

  • question_answer
    A hot and a cold body are kept in vacuum separated from each other. Which of the following cause decrease in temperature of the hot body                                  [AFMC 2005]

    A)            Radiation

    B)            Convection

    C)            Conduction

    D)            Temperature remains unchanged

    Correct Answer: A

    Solution :

               In vacuum heat flows by the radiation mode only.


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