engineering physics MCQ #388

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

engineering physics MCQ #388

  1. Question 1

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

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

    Answer: 1/4

    Explanation: Using 1/λ = R [1/n1² - 1/n2²], ratio of wavelengths is calculated as λ_Lyman / λ_Balmer = (1/4) / 1 = 1/4.