COMEDK · Physics · 21. Magnetic Effects of Current
Moment of momentum of an electron revolving in second Bohr orbit of hydrogen is
- A \(2 \pi h\)
- B \(h / 2 \pi\)
- C \(h / \pi\)
- D \(2 h / 3 \pi\)
Answer & Solution
Correct Answer
(C) \(h / \pi\)
Step-by-step Solution
Detailed explanation
Moment of momentum of an electron in \(n\)th orbit is given by \(L=\frac{n h}{2 \pi}\) For an electron in second Bohr orbit, \(n=2\) \(\therefore \quad L=\frac{2 h}{2 \pi}=\frac{h}{\pi}\)
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