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Friday, 9 October

JEE Main 2023 · PhysicsMultiple choiceDiagram basedEasyDiagram reading

JEE Main 6 April 2023, Shift 1, Physics Q34

Question 34 of 90 in this shift, Physics question 4 of 30, Section A.

The energy levels of an hydrogen atom are shown below. The transition corresponding to emission of shortest wavelength is

The figure, in words

Energy-level diagram with levels n=4, n=3, n=2, n=1. Arrow A: n=4 to n=3; arrow B: n=4 to n=2; arrow C: n=3 to n=2; arrow D: n=3 to n=1.
  1. (1)A
  2. (2)B
  3. (3)C
  4. (4)DOfficial answer

Official answer

Option 4

NTA final key.

Chapter
Atoms

Same idea in other shifts

Asked 3× in all
  1. 2 Apr 2026, Shift 1 · Q44Angular momentum of an electron in a hydrogen atom is 3hπ\frac{3h}{\pi}, then the energy of the electron is ______ eV.EasySingle correct
  2. 2 Apr 2025, Shift 1 · Q43Considering Bohr's atomic model for hydrogen atom : (A) the energy of H atom in ground state is same as energy of He+\mathrm{He^+} ion in…EasyOther

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.