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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2013

  • question_answer
     An electron in H-atom in its ground state absorbs 1.50 times as much as energy as the minimum required for its escape (13.6 eV) from the atom. Thus, KE given to emitted electron is

    A)  13.6eV                

    B)  20.4 eV

    C)  34.0eV                                

    D)  6.8eV

    Correct Answer: B

    Solution :

                    Energy in ground state =13.6 eV Energy absorbed \[=1.5\times 13.6\text{ }eV=20.4\text{ }eV\] Energy in higher level = 34.0 eV Energy emitted \[=34.0-13.6=20.4\text{ }eV\] KE to the emitted electron = 20.4 eV


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