In Bohr's model: $KE = -E$ (total energy is negative)
$$\frac{KE}{E} = \frac{-E}{E} = -1$$
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JEE Main 2023 — Physics Modern Physics
hard
mcq
2023
Official previous-year question
Verified 30 May 2026.
Question
In Bohr's model, the ratio of the kinetic energy to the total energy of the electron in the $n$th orbit is:
Options
- A
$-1$
- B
$1$
- C
$-2$
- D
$2$
Solution
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