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Saturday, 31 October

JEE Main · Physics · Atoms

Energy Ratios in Bohr Orbits

JEE Main asked Energy Ratios in Bohr Orbits 5 times in 4 of the 108 shifts Lumi analysed, in 2021, 2022 and 2024. It belongs to Bohr's Atomic Model, in Atoms (Physics). The longest wait between two years asking it was 2 years. In 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
5
in 4 shifts
Years
3 of 8
First asked
2021
last in 2024
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

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

00.050.10’170’200.07’210.03’220’230.09’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 2 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 2 in 18 shifts · 2025: 0 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
  • 20250 of 8
  • 20242 of 18
  • 20230 of 12
  • 20221 of 24
  • 202121 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: conceptual.

  • Ratio of energies of electron in bohr orbit
  • Relation between total and potential energy in orbit

Difficulty

Easy 3Medium 2Hard 0

1 of the 5 questions had a numerical answer.

Every question

All 5 questions

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

  1. 30 Jan 2024, Shift 1 · Q47The ratio of the magnitude of the kinetic energy to the potential energy of an electron in the 5th5^{\mathrm{th}} excited state of a…EasySingle correct
  2. 5 Apr 2024, Shift 1 · Q48An electron rotates in a circle around a nucleus having positive charge Ze. Correct relation between total energy (E) of electron to its…EasySingle correct
  3. 24 Jun 2022, Shift 2 · Q50In Bohr’s atomic model of hydrogen, let K, P and E are the kinetic energy, potential energy and total energy of the electron respectively.…EasySingle correct
  4. 4 Aug 2021, Shift 2 · Q2For an electron orbiting around the nucleus in a hydrogen like atom with atomic number Z; T, U and E denote the kinetic, potential and…MediumOther
  5. 4 Aug 2021, Shift 2 · Q30In the Bohr’s atomic model, second energy state potential energy of hydrogen is (–E). the kinetic energy of electron in the first energy…MediumNumerical value

Shifts: 4 Aug 2021, Shift 2, 24 Jun 2022, Shift 2, 30 Jan 2024, Shift 1, 5 Apr 2024, 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