engineering physics MCQ #605

The energy of the nth orbit of hydrogen-like atom with Z = 3 is given by En = -13.6 * 3² / n² eV. What is the energy of the 2nd orbit?

engineering physics MCQ #605

  1. Question 1

    Q1. The energy of the nth orbit of hydrogen-like atom with Z = 3 is given by En = -13.6 * 3² / n² eV. What is the energy of the 2nd orbit?

    • A) -30.6 eV
    • B) -13.6 eV
    • C) -61.2 eV
    • D) -6.8 eV

    Answer: -30.6 eV

    Explanation: En = -13.6 * 9 / 4 = -30.6 eV.