engineering physics MCQ #413

The radius of the nth orbit of hydrogen atom is given by rn = n² * 0.053 nm. The radius of the 3rd orbit is

engineering physics MCQ #413

  1. Question 1

    Q1. The radius of the nth orbit of hydrogen atom is given by rn = n² * 0.053 nm. The radius of the 3rd orbit is

    • A) 0.477 nm
    • B) 0.159 nm
    • C) 0.053 nm
    • D) 0.477 nm (2)

    Answer: 0.477 nm

    Explanation: For n = 3, rn = 3² * 0.053 = 0.477 nm.