engineering physics MCQ #431

The energy of the nth orbit is given by En = -13.6 / n² eV. The energy of the 4th orbit is

engineering physics MCQ #431

  1. Question 1

    Q1. The energy of the nth orbit is given by En = -13.6 / n² eV. The energy of the 4th orbit is

    • A) -0.85 eV
    • B) -1.36 eV
    • C) -2.04 eV
    • D) -3.4 eV

    Answer: -0.85 eV

    Explanation: Substitute n = 4 in the given formula to get E4 = -13.6 / 16 = -0.85 eV.