The ratio of the radii of the first three Bohr orbits is:
Correct answer: C. 1 : 4 : 9
- A. 1: 05 : 0.33
- B. 1 : 2 : 3
- C. 1 : 4 : 9
- D. 1 : 8 : 27
Explanation
The radii of the Bohr orbits are proportional to the square of the principal quantum numbers (n2). The first three Bohr orbits correspond to n = 1, 2, and 3. Therefore, their radii ratio would be 12 : 22 : 32 = 1 : 4 : 9.
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