engineering physics MCQ #383

The wavelength of the first line of Lyman series is 1216 Å. The wavelength of the second line of Lyman series is

engineering physics MCQ #383

  1. Question 1

    Q1. The wavelength of the first line of Lyman series is 1216 Å. The wavelength of the second line of Lyman series is

    • A) 1026 Å
    • B) 1216 Å
    • C) 1000 Å
    • D) 800 Å

    Answer: 1026 Å

    Explanation: Using 1/λ = R [1/1² - 1/n²], for n = 3, 1/λ = R [1 - 1/9] = 8R/9, λ = 1026 Å.