JEE Main & Advanced Physics Transmission of Heat Question Bank Topic Test - Transmission Of Heat

  • question_answer
    When a body cools by radiation, the rate of decrease of its temperature depends upon

    A) Specific heat of the body

    B) Mass of the body

    C) Nature of the surface of the body

    D) All of these

    Correct Answer: D

    Solution :

    [d] \[-ms\frac{dT}{dt}=4Ae\sigma \Delta T\times {{T}^{3}}\] \[\Rightarrow \frac{dT}{dt}=-\frac{\sigma eA\times 4{{J}^{3}}\Delta T}{ms}\]


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