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JIPMER Jipmer Medical Solved Paper-2005

  • 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 Stefans 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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