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CMC Medical CMC-Medical Ludhiana Solved Paper-2013

  • question_answer
    The energy required to excite an electron of H atom from first orbit to second orbit is

    A)  \[\frac{3}{4}\] of its ionisation energy

    B)  \[\frac{1}{2}\] of its ionisation energy

    C)  \[\frac{1}{4}\] of its ionisation energy

    D)  \[\frac{1}{9}\]of its ionisation energy

    Correct Answer: A

    Solution :

                    The required transition energy is\[\Delta E=K\left( 1-\frac{1}{4} \right)=\frac{3}{4}K=\frac{3}{4}\times \]ionisation energy


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