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Question: Answered & Verified by Expert
If $E$ and $L$ denote the magnitudes of total energy and of angular momentum of electron in Bohr orbit then the true relation between them is
PhysicsAtomic PhysicsMHT CETMHT CET 2022 (08 Aug Shift 1)
Options:
  • A $L \propto \frac{1}{\sqrt{E}}$
  • B $E \propto \frac{1}{L}$
  • C $E \propto L$
  • D $L \propto \sqrt{E}$
Solution:
2645 Upvotes Verified Answer
The correct answer is: $L \propto \frac{1}{\sqrt{E}}$
According to Bohr's theory, for the $n^{\text {th }}$ orbit total energy is given by
$E \propto \frac{1}{n^2}$
and the angular momentum is given by
$L \propto n$
$\therefore L \propto \frac{1}{\sqrt{E}}$

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