engineering physics MCQ #572

The wavelength of a spectral line in the hydrogen spectrum is given by 1 / λ = R * (1 / 2² - 1 / n²). What is the value of n for the third line in the Balmer series?

engineering physics MCQ #572

  1. Question 1

    Q1. The wavelength of a spectral line in the hydrogen spectrum is given by 1 / λ = R * (1 / 2² - 1 / n²). What is the value of n for the third line in the Balmer series?

    • A) 3
    • B) 4
    • C) 5
    • D) 6

    Answer: 5

    Explanation: The third line in the Balmer series corresponds to the transition from n = 5 to n = 2.