Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsAtoms1 Mark
Question
How many spectral lines are there in the hydrogen spectrum?
✓
Answer
Multiple
Explanation:
Even though hydrogen has only one electron in its outermost shell, it has multiple spectral lines.
This is because hydrogen has many energy levels.
When the electron excites from a lower level of energy into a higher level, then it releases a photon, and this photon is the one that appears as spectral lines.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.