MCQ
In hydrogen atom, when electron jumps from second to first orbit, then energy emitted is
- A$-13.6 eV$
- B$-27.2 eV$
- C$-6.8 eV$
- ✓None of these
✓
Answer
Correct option: D.
None of these
$ E_{n_1 \rightarrow n_2}=-13.6\left[\frac{1}{n_2^2}-\frac{1}{n_1^2}\right] ; n_1=2 n_2=1$
$ \Rightarrow E_{I I} \rightarrow E_I=-13.6 \times \frac{3}{4}=-10.2 \mathrm{eV}$
$ \Rightarrow E_{I I} \rightarrow E_I=-13.6 \times \frac{3}{4}=-10.2 \mathrm{eV}$
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