STANDARDPhysics-Atomic Structure
STANDARD Physics Bohr's Model MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The radius of first Bohr's orbit for hydrogen is 0.53 Å. The radius of third Bohr's orbit would be
A
0.79 Å
B
1.59 Å
C
3.18 Å
D
4.77 Å
Correct Answer
Option D
Detailed Explanation
The radius of the nth orbit in a hydrogen atom is given by rₙ = r₁ × n². For the third orbit, r₃ = 0.53 × 3² = 0.53 × 9 = 4.77 Å.
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