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JEE Main & Advanced Physics Atomic Physics Question Bank Atomic Structure

  • question_answer
    In the spectrum of hydrogen atom, the ratio of the longest wavelength in Lyman series to the longest wavelength in the Balmer series is                                                           [UPSEAT 2004]

    A)            5/27                                         

    B)            1/93

    C)            4/9 

    D)            3/2

    Correct Answer: A

    Solution :

                       In Lyman series \[{{\lambda }_{\max }}=\frac{4}{3R}\]            In Balmer series \[{{\lambda }_{\max }}=\frac{36}{5R}.\]So required ratio \[=\frac{5}{27}\]


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