engineering physics MCQ #576

The Lyman series in the hydrogen spectrum corresponds to transitions to the n = 1 state. What is the wavelength of the first line in the Lyman series?

engineering physics MCQ #576

  1. Question 1

    Q1. The Lyman series in the hydrogen spectrum corresponds to transitions to the n = 1 state. What is the wavelength of the first line in the Lyman series?

    • A) 121.6 nm
    • B) 102.6 nm
    • C) 91.2 nm
    • D) 1216 Å

    Answer: 121.6 nm

    Explanation: Use the Rydberg formula 1 / λ = R * (1 / 1² - 1 / 2²) to find λ = 121.6 nm.