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Atoms and Nuclei question

2021 · 17 Mar · Shift 2 · Q46
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Atoms and Nuclei question

2021 · 17 Mar · Shift 2 · Q46

JEE MainPhysicsAtoms and NucleiMCQ+4 / −1
The atomic hydrogen emits a line spectrum consisting of various series. Which series of hydrogen atomic spectra is lying in the visible region?
  1. A
    Brackett series
  2. B
    Balmer series
  3. C
    Paschen series
  4. D
    Lyman series
View written solutionFree

Correct answer: B

  1. Hydrogen spectral series are classified by the final energy level nfn_fnf​ to which the electron falls:

    • Lyman series: nf=1n_f = 1nf​=1 → ultraviolet region
    • Balmer series: nf=2n_f = 2nf​=2 → visible region
    • Paschen series: nf=3n_f = 3nf​=3 → infrared region
    • Brackett series: nf=4n_f = 4nf​=4 → infrared region

  2. The question asks which series lies in the visible region.

  3. From the known classification, the Balmer series corresponds to visible light.

  4. Therefore, the correct option is:

    B: Balmer series\boxed{\text{B: Balmer series}}B: Balmer series​

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