engineering physics MCQ #507

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

engineering physics MCQ #507

Question 1
Q1. The radius of the nth orbit is given by rn = n² * 0.053 nm. What is the radius of the 4th orbit?
- A) 0.848 nm
- B) 0.212 nm
- C) 0.053 nm
- D) 0.424 nm
Answer: 0.848 nm
Explanation: Substitute n = 4 into rn = n² * 0.053 nm to get r4 = 16 * 0.053 = 0.848 nm.