engineering physics MCQ #355

The energy of the nth orbit is En = -13.6 / n² eV. What is the energy difference between n = 2 and n = 3?

engineering physics MCQ #355

  1. Question 1

    Q1. The energy of the nth orbit is En = -13.6 / n² eV. What is the energy difference between n = 2 and n = 3?

    • A) 1.89 eV
    • B) 3.4 eV
    • C) 1.51 eV
    • D) 0.85 eV

    Answer: 1.89 eV

    Explanation: ΔE = E3 - E2 = (-1.51) - (-3.4) = 1.89 eV.