JEE Main · Physics · Nuclei
Fractional Remainder Shortcut
JEE Main asked Fractional Remainder Shortcut once in the 108 shifts Lumi analysed, on 29 Jun 2022, Shift 2. It belongs to Radioactive Decay, in Nuclei (Physics).
Updated 2026-10-24
- Times asked
- 1
- in 1 shift
- Years
- 1 of 8
- First asked
- 2022
- the only year
- Pattern
- Occasional
- asked once so far
Questions on this idea a shift, by year
2017–2026. Asked in 2022. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 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.
How JEE Main framed it
Numerical value is the usual form. Skill tested: calculation.
- Time to decay to given fraction
Difficulty
1 of the 1 question had a numerical answer.
Every question
The question
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
Shift: 29 Jun 2022, Shift 2.
Same topic
Other ideas in Radioactive Decay
Radioactive Decay has 12 ideas JEE Main has asked; 9 of them came up in more than one question.
- Half-Life Calculations10× · 2023
- Integer Half-Life Shortcuts7× · 2022
- Statistical Decay Law5× · 2022
- Successive Decay Chains3× · 2025
- Activity and Rate of Decay3× · 2023
- Counting Alpha and Beta Emissions3× · 2022
- Alpha Decay Kinematics and Q-Value2× · 2026
- Mean Life Calculation2× · 2023
- Parallel Decay Branching2× · 2022
- Activity from Sample Massonce · 2021
- Beta Decay Mechanismsonce · 2021