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Saturday, 31 October

JEE Main · Physics · Atoms

Energy Level Calculations

JEE Main asked Energy Level Calculations 12 times in 12 of the 108 shifts Lumi analysed, in 2021, 2022, 2023, 2024, 2025 and 2026. It belongs to Bohr's Atomic Model, in Atoms (Physics). The longest wait between two years asking it was 1 year. In 2021, 2022 and 2023 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
12
in 12 shifts
Years
6 of 8
First asked
2021
last in 2026
Pattern
Asked most years
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021, 2022, 2023, 2024, 2025 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.10.20’170’200.10’210.14’220.14’230.05’240.13’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 3 in 24 shifts · 2022: 4 in 24 shifts · 2023: 2 in 12 shifts · 2024: 1 in 18 shifts · 2025: 1 in 8 shifts · 2026: 1 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20261 of 9
  • 20251 of 8
  • 20241 of 18
  • 20232 of 12
  • 20224 of 24
  • 20213 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: calculation.

  • Energy in orbit from angular momentum
  • Count correct statements on bohr model energies

Difficulty

Easy 8Medium 4Hard 0

3 of the 12 questions had a numerical answer.

Every question

All 12 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  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
  3. 6 Apr 2024, Shift 1 · Q60Radius of a certain orbit of hydrogen atom is 8.48 Å. If energy of electron in this orbit is E/xE/x, then xx = __________. (Given aoa_o =…EasyNumerical value
  4. 11 Apr 2023, Shift 2 · Q44The energy of He+\mathrm{He^+} ion in its first excited state is, (The ground state energy for the Hydrogen atom is −13.6 eV-13.6\ \mathrm{eV}):EasySingle correct
  5. 6 Apr 2023, Shift 1 · Q34The energy levels of an hydrogen atom are shown below. The transition corresponding to emission of shortest wavelength isEasyDiagram basedHas a figure
  6. 30 Jun 2022, Shift 1 · Q59A hydrogen atom in its first excited state absorbs a photon of energy x×10−2x\times10^{-2} eV and excited to a higher energy state where the…MediumNumerical value
  7. 27 Jun 2022, Shift 2 · Q48Given below are two statements: Statement I: In hydrogen atom, the frequency of radiation emitted when an electron jumps from lower energy…EasyTwo statements
  8. 27 Jun 2022, Shift 1 · Q54A beam of monochromatic light is used to excite the electron in Li++\mathrm{Li^{++}} from the first orbit to the third orbit. The wavelength…MediumNumerical value
  9. 29 Jul 2022, Shift 1 · Q47Find the ratio of energies of photons produced due to transition of an electron of hydrogen atom from its (i) second permitted energy…EasySingle correct
  10. 24 Feb 2021, Shift 2 · Q17According to Bohr atom model, in which of the following transitions will the frequency be maximum ?EasySingle correct
  11. 31 Aug 2021, Shift 2 · Q2A free electron of 2.62.6 eV energy collides with a H+\mathrm{H^+} ion. This results in the formation of a hydrogen atom in the first…MediumSingle correct
  12. 4 Aug 2021, Shift 1 · Q3In a hydrogen atom, if energy of the nth^{th} level is denoted by EnE_n and ΔEn=En+1−En\Delta E_n = E_{n+1} - E_n, then for very large values of…MediumSingle correct

Shifts: 24 Feb 2021, Shift 2, 4 Aug 2021, Shift 1, 31 Aug 2021, Shift 2, 27 Jun 2022, Shift 2, 27 Jun 2022, Shift 1, 30 Jun 2022, Shift 1, 29 Jul 2022, Shift 1, 6 Apr 2023, Shift 1, 11 Apr 2023, Shift 2, 6 Apr 2024, Shift 1, 2 Apr 2025, Shift 1, 2 Apr 2026, Shift 1.

Same topic

Other ideas in Bohr's Atomic Model

Bohr's Atomic Model has 22 ideas JEE Main has asked; 13 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas