Physics-Hydrogen Atom
NEET Physics Hydrogen Atom MCQ Question
Type: MCQ-numerical-Hard-Class 12
According to Bohr's model, what is the angular momentum of an electron in the third orbit of a hydrogen atom, given that Planck's constant h is 6.6 × 10^(-34) J s?
A
3.15 × 10^(-34) J s
B
1.98 × 10^(-34) J s
C
9.9 × 10^(-34) J s
D
6.6 × 10^(-34) J s
Correct Answer
Option C
Detailed Explanation
Bohr's model states that the angular momentum L = nh/2π. For the third orbit (n=3), L = 3 × (6.6 × 10^(-34) J s) / (2π) = 9.9 × 10^(-34) J s.
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