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MGIMS WARDHA MGIMS WARDHA Solved Paper-2004

  • question_answer
    The temperature of the black body Increases from T to 2T. The factor by which the rate of emission will increase, is:

    A) 4                             

    B) 2

    C) 16                                          

    D) 8

    Correct Answer: C

    Solution :

    According to Stefan's law for radiated energy \[E\propto {{T}^{4}}\] Hence, \[\frac{{{E}_{1}}}{{{E}_{2}}}=\frac{T_{1}^{4}}{T_{2}^{4}}={{\left( \frac{T}{2T} \right)}^{4}}=\frac{1}{16}\] \[\therefore \]  \[{{E}_{2}}=16\,{{E}_{1}}\]


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