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JEE Main & Advanced Physics Atomic Physics Question Bank Atomic Structure

  • question_answer
    Hydrogen atom emits blue light when it changes from n = 4 energy level to the n = 2 level. Which colour of light would the atom emit when it changes from the n = 5 level to the n = 2 level                                              [KCET 1993]

    A)            Red                                          

    B)            Yellow

    C)            Green                                     

    D)            Violet

    Correct Answer: D

    Solution :

               In the transition from orbit \[5\to 2,\]more energy is liberated as compared to transition from \[4\to 2.\]


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