engineering physics MCQ #549

The ratio of the radii of the first and second orbits of hydrogen atom is

engineering physics MCQ #549

  1. Question 1

    Q1. The ratio of the radii of the first and second orbits of hydrogen atom is

    • A) 1 / 4
    • B) 1 / 2
    • C) 1 / 1
    • D) 1 / 4 (2)

    Answer: 1 / 4

    Explanation: r1 = r1, r2 = 4r1, ratio = r1 / r2 = 1 / 4, using rn = n²r1.