MDCAT Physics MCQ #297

The radius of the first Bohr orbit is 0.53 Å. What is the radius of the third Bohr orbit?

MDCAT Physics MCQ #297

  1. Question 1

    Q1. The radius of the first Bohr orbit is 0.53 Å. What is the radius of the third Bohr orbit?

    • A) 1.59 Å
    • B) 4.77 Å
    • C) 0.18 Å
    • D) 0.053 Å

    Answer: 4.77 Å

    Explanation: Radius is proportional to n^2; for n=3, radius = 0.53 * 9 = 4.77 Å.