engineering physics MCQ #410

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

engineering physics MCQ #410

  1. Question 1

    Q1. The energy of the nth orbit of hydrogen atom is given by En = -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: Using En = -13.6 / n², for n = 2, En = -13.6 / 2² = -3.4 eV.