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
d
${E_{{n_1} \to {n_2}}} = - 13.6\left[ {\frac{1}{{n_2^2}} - \frac{1}{{n_1^2}}} \right];{n_1} = 2$ & ${n_2} = 1$
${E_{{n_1} \to {n_2}}} = - 13.6\left[ {\frac{1}{{n_2^2}} - \frac{1}{{n_1^2}}} \right];{n_1} = 2$ & ${n_2} = 1$
$ \Rightarrow {E_{II}} \to {E_I} = - 13.6 \times \frac{3}{4} = - 10.2\;eV$
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