Manipal Medical Manipal Medical Solved Paper-2009

  • question_answer
    The rate of emission of a black body at\[0{}^\circ C\]is R, its rate of emission at\[273{}^\circ C\]is

    A)  4R             

    B)  8R

    C)  16 R            

    D)  32 R         

    Correct Answer: C

    Solution :

    As we know \[R\propto {{T}^{4}}\] \[\therefore \] \[\frac{R}{R}=\frac{{{(273+273)}^{4}}}{{{(273+0)}^{4}}}=\frac{16\times {{(273)}^{4}}}{{{(273)}^{4}}}\] \[R=16\,R\]


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