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Saturday, 31 October

JEE Main · Physics · Oscillations

Springs in Series

JEE Main asked Springs in Series 4 times in 4 of the 108 shifts Lumi analysed, in 2021, 2022 and 2024. It belongs to SHM Equations, in Oscillations (Physics). The longest wait between two years asking it was 2 years. In 2021 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 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.

00.050.10’170’200.07’210.03’220’230.05’240’250’26

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: 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
  • 20221 of 24
  • 20212 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.

  • Period of mass on spring network
  • Period ratio for springs in series and parallel

Difficulty

Easy 2Medium 2Hard 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. 31 Jan 2024, Shift 2 · Q54The time period of simple harmonic motion of mass MM in the given figure is παM5k\pi\sqrt{\frac{\alpha M}{5k}}, where the value of α\alpha…MediumNumerical valueHas a figure
  2. 26 Jul 2022, Shift 2 · Q60As per given figures, two springs of spring constants kk and 2k2k are connected to mass mm. If the period of oscillation in figure (a)…MediumNumerical valueHas a figure
  3. 17 Mar 2021, Shift 1 · Q28Consider two identical springs each of spring constant k and negligible mass compared to the mass M as shown. Fig. 1 shows one of them and…EasyNumerical valueHas a figure
  4. 26 Feb 2021, Shift 1 · Q11If two similar springs each of spring constant K1\mathrm{K_1} are joined in series, the new spring constant and time period would be…EasySingle correct

Shifts: 26 Feb 2021, Shift 1, 17 Mar 2021, Shift 1, 26 Jul 2022, Shift 2, 31 Jan 2024, Shift 2.

Same topic

Other ideas in SHM Equations

SHM Equations has 21 ideas JEE Main has asked; 12 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas