A) \[3\xrightarrow{{}}1\]
B) \[1\xrightarrow{{}}2\]
C) \[4\xrightarrow{{}}2\]
D) \[2\xrightarrow{{}}4\]
Correct Answer: C
Solution :
When electronic transition in H-atom Stakes place from higher level \[({{n}_{2}}=3,4,5...\infty )\] to second level \[({{n}_{1}}=2),\] then obtained spectral lines are called Balmer-series.
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