engineering physics MCQ #415

The energy of the electron in the ground state of hydrogen atom is -13.6 eV. The energy of the electron in the first excited state is

engineering physics MCQ #415

  1. Question 1

    Q1. The energy of the electron in the ground state of hydrogen atom is -13.6 eV. The energy of the electron in the first excited state is

    • A) -3.4 eV
    • B) -6.8 eV
    • C) -1.7 eV
    • D) -13.6 eV

    Answer: -3.4 eV

    Explanation: For n = 2, En = -13.6 / 2² = -3.4 eV.