engineering physics MCQ #418

The wavelength of the radiation emitted when an electron jumps from n = 5 to n = 2 is

engineering physics MCQ #418

  1. Question 1

    Q1. The wavelength of the radiation emitted when an electron jumps from n = 5 to n = 2 is

    • A) 434.1 nm
    • B) 410.2 nm
    • C) 486.1 nm
    • D) 656.3 nm

    Answer: 410.2 nm

    Explanation: 1 / λ = R * (1/2² - 1/5²), λ = 410.2 nm.