engineering physics MCQ #459

The radius of the first Bohr orbit of hydrogen atom is 0.53 Å. What is the radius of the 4th orbit?

engineering physics MCQ #459

  1. Question 1

    Q1. The radius of the first Bohr orbit of hydrogen atom is 0.53 Å. What is the radius of the 4th orbit?

    • A) 8.48 Å
    • B) 0.53 Å
    • C) 3.18 Å
    • D) 2.12 Å

    Answer: 8.48 Å

    Explanation: Using rn = n² * r1, for n = 4, r4 = 16 * 0.53 = 8.48 Å.