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CMC Medical CMC-Medical VELLORE Solved Paper-2013

  • question_answer
    For an encloses maintained at 1000 K, the maximum radiation occurs at wavelength \[{{\lambda }_{m}}\]. If the temperature is raised to 2000 K, the peak will shift to

    A)  \[\frac{{{\lambda }_{m}}}{2}\]                                 

    B)  \[2{{\lambda }_{m}}\]

    C)  \[{{2}^{4}}{{\lambda }_{m}}\]                   

    D)  \[{{2}^{-4}}{{\lambda }_{m}}\]

    Correct Answer: A

    Solution :

                    Wiens displacement law \[{{\lambda }_{m}}T=\] Constant \[\frac{{{({{\lambda }_{m}})}_{2}}}{{{({{\lambda }_{m}})}_{1}}}=\frac{1000}{2000}\] \[{{({{\lambda }_{m}})}_{2}}=\frac{{{\lambda }_{m}}}{2}\]


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