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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 39

  • question_answer
    In a sample of hydrogen like atoms all of which are in ground state, a photon beam containing photons of various energies is passed. In absorption spectrum, five dark lines are observed. The maximum number of bright lines in the emission spectrum will be (assume that all transitions take place) -

    A) 21        

    B)        10    

    C) 15        

    D)        None

    Correct Answer: C

    Solution :

    [c] Five dark line is line of absorption spectrum. maximum value of state is n = 6 So line in emission spectrum \[={{\,}^{6}}{{C}_{2}}=15\]        


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