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MGIMS WARDHA MGIMS WARDHA Solved Paper-2010

  • question_answer
    The energy of a photon corresponding to the visible light of maximum wavelength is approximately

    A)  1 eV                                     

    B)  1.6eV

    C)  3.2 eV                                 

    D)  7eV

    Correct Answer: B

    Solution :

                     Energy of photon,\[E=\frac{12375}{\lambda (in{\AA})}eV\] For red light the wavelength is maximum. \[\because \]     \[{{\lambda }_{R}}=7900{\AA}\] \[\therefore \]  \[E=\frac{12375}{7900}eV\]                 \[=1.56\,eV\]                 \[\simeq 1.6\,eV\]


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