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Saturday, 31 October

JEE Main · Physics · Atoms

Angular Momentum Quantization

JEE Main asked Angular Momentum Quantization 9 times in 9 of the 108 shifts Lumi analysed, in 2021, 2022, 2023, 2024 and 2025. It belongs to Bohr's Atomic Model, in Atoms (Physics). The longest wait between two years asking it was 1 year. In 2022, 2023 and 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
9
in 9 shifts
Years
5 of 8
First asked
2021
last in 2025
Pattern
Asked most years
across the analysed shifts

Questions on this idea a shift, by year

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

00.10.20’170’200.03’210.10’220.14’230.09’240.13’250’26

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

Shift by shift

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

  • 20260 of 9
  • 20251 of 8
  • 20242 of 18
  • 20232 of 12
  • 20223 of 24
  • 20211 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: multi-step.

  • Statement i/ii on bohr model
  • Identify expression for bohr orbit quantity

Difficulty

Easy 6Medium 3Hard 0

1 of the 9 questions had a numerical answer.

Every question

All 9 questions

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

  1. 4 Apr 2025, Shift 2 · Q41Given below are two statements : Statement (I) : The dimensions of Planck's constant and angular momentum are same. Statement (II) : In…EasyTwo statements
  2. 5 Apr 2024, Shift 2 · Q48The angular momentum of an electron in a hydrogen atom is proportional to : (Where r is the radius of orbit of electron)EasySingle correct
  3. 4 Apr 2024, Shift 2 · Q48According to Bohr's theory, the moment of momentum of an electron revolving in 4th^{th} orbit of hydrogen atom is:EasySingle correct
  4. 10 Apr 2023, Shift 1 · Q44The angular momentum for the electron in Bohr's orbit is LL. If the electron is assumed to revolve in second orbit of hydrogen atom, then…EasySingle correct
  5. 6 Apr 2023, Shift 2 · Q43A small particle of mass mm moves in such a way that its potential energy U=12mω2r2U=\frac{1}{2}m\omega^2 r^2 where ω\omega is constant and rr…MediumSingle correct
  6. 30 Jun 2022, Shift 1 · Q50A hydrogen atom in ground state absorbs 12.09 eV of energy. The orbital angular momentum of the electron is increased by :MediumSingle correct
  7. 27 Jun 2022, Shift 1 · Q48A hydrogen atom in its ground state absorbs 10.2 eV of energy. The angular momentum of electron of the hydrogen atom will increase by the…EasySingle correct
  8. 25 Jul 2022, Shift 1 · Q48The momentum of an electron revolving in nthn^{\mathrm{th}} orbit is given by : (Symbols have their usual meanings)EasySingle correct
  9. 17 Mar 2021, Shift 2 · Q29A particle of mass m moves in a circular orbit in a central potential field U(r)=U0r4\mathrm{U(r)=U_0r^4}. If Bohr's quantization conditions are…MediumNumerical value

Shifts: 17 Mar 2021, Shift 2, 27 Jun 2022, Shift 1, 30 Jun 2022, Shift 1, 25 Jul 2022, Shift 1, 6 Apr 2023, Shift 2, 10 Apr 2023, Shift 1, 4 Apr 2024, Shift 2, 5 Apr 2024, Shift 2, 4 Apr 2025, Shift 2.

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