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Saturday, 31 October

JEE Main · Chemistry · Structure of Atom

Total, Kinetic, and Potential Energy

JEE Main asked Total, Kinetic, and Potential Energy 4 times in 4 of the 108 shifts Lumi analysed, in 2021, 2023, 2024 and 2025. It belongs to Bohr's Atomic Theory, in Structure of Atom (Chemistry). The longest wait between two years asking it was 2 years.

Updated 2026-10-24

Times asked
4
in 4 shifts
Years
4 of 8
First asked
2021
last in 2025
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

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

00.10.20’170’200.03’210’220.07’230.05’240.13’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 0 in 24 shifts · 2023: 1 in 12 shifts · 2024: 1 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
  • 20241 of 18
  • 20231 of 12
  • 20220 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

Numerical value is the usual form. Skill tested: calculation.

  • Energy in excited state of hydrogen-like ion
  • Kinetic energy of electron in bohr orbit

Difficulty

Easy 3Medium 1Hard 0

2 of the 4 questions had a numerical answer.

Every question

All 4 questions

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

  1. 8 Apr 2025, Shift 2 · Q72The energy of an electron in first Bohr orbit of H-atom is −13.6 eV. The magnitude of energy value of electron in the first excited state…EasyNumerical value
  2. 6 Apr 2024, Shift 2 · Q81For hydrogen atom, energy of an electron in first excited state is −3.4-3.4 eV, K.E. of the same electron of hydrogen atom is xx eV. Value…EasyNumerical value
  3. 13 Apr 2023, Shift 1 · Q61The energy of an electron in the first Bohr orbit of hydrogen atom is −2.18×10−18-2.18\times10^{-18} J. Its energy in the third Bohr orbit…EasySingle correct
  4. 24 Feb 2021, Shift 2 · Q31According to Bohr's atomic theory : (A) Kinetic energy of electron is ∝Z2n2\propto \frac{Z^2}{n^2}. (B) The product of velocity (v) of…MediumSingle correct

Shifts: 24 Feb 2021, Shift 2, 13 Apr 2023, Shift 1, 6 Apr 2024, Shift 2, 8 Apr 2025, Shift 2.

Same topic

Other ideas in Bohr's Atomic Theory

Bohr's Atomic Theory has 14 ideas JEE Main has asked; 10 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas