engineering physics MCQ #511

The energy required to excite an electron from n = 1 to n = 3 is?

engineering physics MCQ #511

  1. Question 1

    Q1. The energy required to excite an electron from n = 1 to n = 3 is?

    • A) 12.09 eV
    • B) 10.2 eV
    • C) 13.6 eV
    • D) 1.89 eV

    Answer: 12.09 eV

    Explanation: Calculate E1 and E3 using En = -13.6 / n² eV, then find the difference E3 - E1.