engineering physics MCQ #545

The ionization potential of hydrogen atom is 13.6 V. What is the energy required to remove an electron from n = 3?

engineering physics MCQ #545

  1. Question 1

    Q1. The ionization potential of hydrogen atom is 13.6 V. What is the energy required to remove an electron from n = 3?

    • A) 1.51 eV
    • B) 3.4 eV
    • C) 6.04 eV
    • D) 12.09 eV

    Answer: 1.51 eV

    Explanation: Energy required = E∞ - E3 = 0 - (-1.51) = 1.51 eV, using En = -13.6 / n² eV.