engineering physics MCQ #587

In the Bohr model, the radius of the nth orbit is proportional to n². If the radius of the 1st orbit is 0.53 Å, what is the radius of the 4th orbit?

engineering physics MCQ #587

  1. Question 1

    Q1. In the Bohr model, the radius of the nth orbit is proportional to n². If the radius of the 1st orbit is 0.53 Å, what is the radius of the 4th orbit?

    • A) 8.48 Å
    • B) 4.24 Å
    • C) 2.12 Å
    • D) 0.53 Å

    Answer: 8.48 Å

    Explanation: The radius is proportional to n², so r4 = r1 * (4/1)² = 0.53 * 16 = 8.48 Å.