engineering physics MCQ #444

The energy of the nth orbit of hydrogen atom is given by E_n = -13.6 / n² eV. The energy of the 2nd orbit is

engineering physics MCQ #444

  1. Question 1

    Q1. The energy of the nth orbit of hydrogen atom is given by E_n = -13.6 / n² eV. The energy of the 2nd orbit is

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

    Answer: -3.4 eV

    Explanation: Substitute n = 2 in E_n = -13.6 / n² eV to get E_2 = -13.6 / 4 = -3.4 eV.