AIIMS 2019 Physics Hydrogen Spectrum MCQ Question

In the Balmer series, which describes the electron transitions in a hydrogen atom from higher energy levels (n ≥ 3) to the second energy level (n = 2), there are four visible lines corresponding to the wavelengths of light emitted: Hα (n=3 to n=2), Hβ (n=4 to n=2), Hγ (n=5 to n=2), and Hδ (n=6 to n=2). Therefore, option B is correct as it accounts for these four visible spectral lines. Options A (2 lines), C (3 lines), and D (5 lines) are incorrect because they do not accurately represent the number of transitions that result in visible light within the Balmer series.