Question:
If an electron drops from $n=4$ to $n=2$ in a hydrogen atom, the series of spectral lines observed is:
If an electron drops from $n=4$ to $n=2$ in a hydrogen atom, the series of spectral lines observed is:
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Balmer series is the only series in the Hydrogen spectrum that falls in the visible region.
Updated On: Apr 8, 2026
- Lyman series
- Balmer series
- Paschen series
- Brackett series
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The Correct Option is B
Solution and Explanation
Step 1: Concept
Spectral series are named based on the lower energy level ($n_{f}$) the electron drops to.
Step 2: Analysis
Lyman ($n_{f}=1$), Balmer ($n_{f}=2$), Paschen ($n_{f}=3$), etc.
Step 3: Conclusion
Since the transition ends at $n=2$, it belongs to the Balmer series.
Final Answer: (B)
Spectral series are named based on the lower energy level ($n_{f}$) the electron drops to.
Step 2: Analysis
Lyman ($n_{f}=1$), Balmer ($n_{f}=2$), Paschen ($n_{f}=3$), etc.
Step 3: Conclusion
Since the transition ends at $n=2$, it belongs to the Balmer series.
Final Answer: (B)
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