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Question: Answered & Verified by Expert
If the electron in a hydrogen atom moves from ground state orbit to $5^{\text {th }}$ orbit, then the potential energy of the electron
PhysicsAtomic PhysicsMHT CETMHT CET 2021 (20 Sep Shift 2)
Options:
  • A is increased
  • B is zero
  • C is decreased
  • D remains unchanged
Solution:
2277 Upvotes Verified Answer
The correct answer is: is increased
The potential energy of electron in hydrogen atom is given by
$$
\mathrm{U}=-\frac{1}{4 \pi \varepsilon_0} \cdot \frac{\mathrm{e}^2}{\mathrm{r}}
$$
Hence as $r$ increase, potential energy will increase. (It will become less negative)

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