2. Solved Papers
  3. JIPMER

JIPMER Jipmer Medical Solved Paper-1999

  • question_answer
    If the temperature of a black body increased  rom \[27{}^\circ C\] to \[327{}^\circ C\], the radiation emitted increases by a fraction of:

    A)  16                                         

    B)  8                            

    C)  4                            

    D)         2

    Correct Answer: A

    Solution :

    Radiation emitted \[{{T}_{1}}=27+273=300\] \[{{T}_{2}}=327+273=600\] \[E\propto {{T}^{4}}\] \[\frac{{{E}_{1}}}{{{E}_{2}}}=\frac{T_{1}^{4}}{T_{2}^{4}}={{\left( \frac{300}{600} \right)}^{4}}\] \[\frac{{{E}_{1}}}{{{E}_{2}}}=\frac{1}{16}\]                 Hence,  \[{{E}_{2}}=16{{E}_{1}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner