engineering physics MCQ #349

The energy of the electron in the nth orbit is En = -13.6 / n² eV. For n = 1, what is the kinetic energy?

engineering physics MCQ #349

  1. Question 1

    Q1. The energy of the electron in the nth orbit is En = -13.6 / n² eV. For n = 1, what is the kinetic energy?

    • A) 13.6 eV
    • B) 6.8 eV
    • C) 0 eV
    • D) 27.2 eV

    Answer: 13.6 eV

    Explanation: The kinetic energy is equal to the absolute value of the total energy, so for n = 1, KE = 13.6 eV.