The spectral series of hydrogen lying in the visible region is called ________ series.
- Lyman
- Balmer
- Paschen
- Brackett
Answer: Balmer
Balmer series (n=2 to higher levels) produces visible lines (Hα, Hβ, etc.). Lyman is UV, Paschen/Brackett are IR. Understanding spectral series is key for atomic structure questions. [[NCERT Physics Class 12]]