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NEET Sample Paper NEET Sample Test Paper-71

  • question_answer
    The energy of the electron in the first orbit of, \[H{{e}^{+}}\] is\[-871.6 \times  1{{0}^{-}}^{20}J\]. The energy of the electron in the first orbit of hydrogen would be

    A) \[-871.6\times 1{{0}^{-}}^{20}\,J\]

    B) \[-435.8\times 1{{0}^{-}}^{20}\,J\]

    C) \[-217.9\times 1{{0}^{-}}^{20}\,J\]     

    D) \[-108.9\times 1{{0}^{-}}^{20}\,J\]

    Correct Answer: C

    Solution :

    \[{{E}_{1\,\,H{{e}^{+}}}}\,\,=\,\,{{E}_{1\,H}}\,\times \,\,{{z}^{2}}\] \[-871.6\,\,\times \,\,1{{0}^{-\,20}}={{E}_{1\,\,H}}\,\times \,\,4\] \[{{E}_{1\,H}}-217.9\times {{10}^{-20}}\,J\]


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