engineering physics MCQ #503

The energy required to excite an electron from n = 1 to n = 2 in a hydrogen atom is

engineering physics MCQ #503

  1. Question 1

    Q1. The energy required to excite an electron from n = 1 to n = 2 in a hydrogen atom is

    • A) 10.2 eV
    • B) 12.09 eV
    • C) 13.6 eV
    • D) 6.8 eV

    Answer: 10.2 eV

    Explanation: Calculate the energy difference between n = 2 and n = 1 using En = -13.6 / n² eV.