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JEE Main & Advanced Physics Transmission of Heat Question Bank Radiation Wein's law

  • question_answer
    The temperature of sun is 5500 K and it emits maximum intensity radiation in the yellow region \[(5.5\times {{10}^{-7}}m)\]. The maximum radiation from a furnace occurs at wavelength \[11\times {{10}^{-7}}m.\]The temperature of furnace is                                           [J & K CET 2000]

    A)            1125 K                                     

    B)            2750 K

    C)            5500 K                                     

    D)            11000 K

    Correct Answer: B

    Solution :

                       \[{{\lambda }_{{{m}_{1}}}}T={{\lambda }_{{{m}_{2}}}}{{T}_{2}}\] Þ \[5.5\times {{10}^{-7}}\times 5500=11\times {{10}^{-7}}T\]            \[T=550\times 5K=2750K\]


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