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Saturday, 31 October

JEE Main · Physics · Mechanical Properties of Solids

Elongation Due to Self-Weight

JEE Main asked Elongation Due to Self-Weight 4 times in 4 of the 108 shifts Lumi analysed, in 2021, 2022 and 2026. It belongs to Elasticity, in Mechanical Properties of Solids (Physics). The longest wait between two years asking it was 4 years. In 2022 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
4
in 4 shifts
Years
3 of 8
First asked
2021
last in 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

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

00.10.20’170’200.03’210.07’220’230’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 2 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 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
  • 20250 of 8
  • 20240 of 18
  • 20230 of 12
  • 20222 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: application.

  • Elongation of rod under own weight
  • Stress in hanging wire at a point

Difficulty

Easy 1Medium 3Hard 0

3 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. 2 Apr 2026, Shift 1 · Q49A uniform wire of length ll of weight ww is suspended from the roof with a weight of WW at the other end. The stress in the wire at…MediumNumerical value
  2. 26 Jun 2022, Shift 1 · Q54The elongation of a wire on the surface of the earth is 10−410^{-4} m. The same wire of same dimensions is elongated by 6×10−56\times10^{-5} m…EasyNumerical value
  3. 26 Jul 2022, Shift 2 · Q55A uniform heavy rod of mass 20 kg, cross sectional area 0.4 m20.4\ m^2 and length 20 m is hanging from a fixed support. Neglecting the lateral…MediumNumerical value
  4. 31 Aug 2021, Shift 1 · Q16A uniform heavy rod of weight 10 kg ms−2^{-2}, cross-sectional area 100 cm2^2 and length 20 cm is hanging from a fixed support. Young…MediumSingle correct

Shifts: 31 Aug 2021, Shift 1, 26 Jun 2022, Shift 1, 26 Jul 2022, Shift 2, 2 Apr 2026, Shift 1.

Same topic

Other ideas in Elasticity

Elasticity has 19 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