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Question: Answered & Verified by Expert
According to Bohr's theory, the angular momentum of an electron in $5^{\text {th }}$ orbit is
ChemistryStructure of AtomJEE MainJEE Main 2006
Options:
  • A
    $25 \frac{\mathrm{h}}{\pi}$
  • B
    $1.0 \frac{\mathrm{h}}{\pi}$
  • C
    $10 \frac{\mathrm{h}}{\pi}$
  • D
    $2.5 \frac{\mathrm{h}}{\pi}$
Solution:
1278 Upvotes Verified Answer
The correct answer is:
$2.5 \frac{\mathrm{h}}{\pi}$
$\begin{aligned} \mathrm{mvr} & =\frac{\mathrm{nh}}{2 \pi} \\ & =\frac{5 \mathrm{~h}}{2 \pi}=2.5 \frac{\mathrm{h}}{\pi}\end{aligned}$

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