MCQ
When an electron does transition from $n=4$ to $n=2$, then emitted line spectrum will be
- Afirst line of Lyman series
- Bfirst line of Paschen series
- ✓second line of Balmer series
- Dsecond line of Paschen series.
The jump from $4^{th}$ orbit shall give rise to second line of Balmer series.
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