engineering physics MCQ #526

The wavelength of a spectral line emitted by hydrogen atom is given by 1 / λ = R (1 / n₁² - 1 / n₂²). What is the value of R?

engineering physics MCQ #526

  1. Question 1

    Q1. The wavelength of a spectral line emitted by hydrogen atom is given by 1 / λ = R (1 / n₁² - 1 / n₂²). What is the value of R?

    • A) 1.097 x 10⁷ m⁻¹
    • B) 1.097 x 10⁶ m⁻¹
    • C) 1.097 x 10⁵ m⁻¹
    • D) 1.097 x 10⁴ m⁻¹

    Answer: 1.097 x 10⁷ m⁻¹

    Explanation: R is the Rydberg constant, known to be 1.097 x 10⁷ m⁻¹.