engineering physics MCQ #325

The ratio of the wavelengths of the last lines of Lyman and Balmer series is

engineering physics MCQ #325

  1. Question 1

    Q1. The ratio of the wavelengths of the last lines of Lyman and Balmer series is

    • A) 1 : 4
    • B) 4 : 1
    • C) 1 : 9
    • D) 9 : 4

    Answer: 1 : 4

    Explanation: Using Rydberg's formula, we find λ_Lyman / λ_Balmer = (1 / 1²) / (1 / 2²) = 1 / 4.