engineering physics MCQ #536

The energy difference between the ground state and the first excited state of hydrogen atom is

engineering physics MCQ #536

  1. Question 1

    Q1. The energy difference between the ground state and the first excited state of hydrogen atom is

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

    Answer: 10.2 eV

    Explanation: Calculate E1 and E2 using En = -13.6 / n² eV, then find the difference: E2 - E1 = -3.4 - (-13.6) = 10.2 eV.