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Saturday, 31 October

JEE Main · Physics · Ray Optics and Optical Instruments

v versus u Graph

JEE Main asked v versus u Graph 3 times in 3 of the 108 shifts Lumi analysed, in 2020, 2021 and 2024. It belongs to Lens Maker's Formula, in Ray Optics and Optical Instruments (Physics). The longest wait between two years asking it was 3 years.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
3 of 8
First asked
2020
last in 2024
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.050.10’170.08’200.03’210’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 1 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 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
  • 20241 of 18
  • 20230 of 12
  • 20220 of 24
  • 20211 of 24
  • 20201 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Diagram based is the usual form. Skill tested: data or graph.

  • Focal length from lens graph
  • Power of lens from v versus u graph

Difficulty

Easy 0Medium 3Hard 0

1 of the 3 questions had a numerical answer.

Every question

All 3 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 2 · Q59In an experiment to measure the focal length (ff) of a convex lens, the magnitude of object distance (xx) and the image distance (yy)…MediumNumerical valueHas a figure
  2. 4 Aug 2021, Shift 2 · Q4The reported graph shows the variation of ‘v’ with ‘u’, where ‘u’ represents the distance of the object from the lens and v represent the…MediumDiagram basedHas a figure
  3. 5 Sep 2020, Shift 1 · Q17For a concave lens of focal length ff, the relation between object and image distances u and vv, respectively, from its pole can best be…MediumDiagram basedHas a figure

Shifts: 5 Sep 2020, Shift 1, 4 Aug 2021, Shift 2, 30 Jan 2024, Shift 2.

Same topic

Other ideas in Lens Maker's Formula

Lens Maker's Formula has 16 ideas JEE Main has asked; 9 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas