engineering physics MCQ #395

The radius of the nth orbit of hydrogen atom is given by rn = n² * 0.053 nm. What is the radius of the 4th orbit?

engineering physics MCQ #395

  1. Question 1

    Q1. The radius of the nth orbit of hydrogen atom is given by rn = n² * 0.053 nm. What is the radius of the 4th orbit?

    • A) 0.848 nm
    • B) 0.848 μm
    • C) 0.053 nm
    • D) 0.212 nm

    Answer: 0.848 nm

    Explanation: Substitute n = 4 in the given formula: rn = 4² * 0.053 = 16 * 0.053 = 0.848 nm.