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Saturday, 31 October

JEE Main · Physics · Waves

Superposition of Traveling Waves

JEE Main asked Superposition of Traveling Waves 3 times in 3 of the 108 shifts Lumi analysed, in 2020, 2021 and 2025. It belongs to Waves on Strings, in Waves (Physics). The longest wait between two years asking it was 4 years.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
3 of 8
First asked
2020
last in 2025
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021 and 2025. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.10.20’170.08’200.03’210’220’230’240.13’250’26

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: 0 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
  • 20240 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

Single correct is the usual form. Skill tested: calculation.

  • Resultant amplitude and phase of two waves
  • Resultant amplitude of two travelling waves

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. 8 Apr 2025, Shift 2 · Q40The amplitude and phase of a wave that is formed by the superposition of two harmonic travelling waves, y1(x,t)=4sin⁡(kx−ωt)y_1(x, t) = 4\sin(kx - \omega t)…MediumSingle correct
  2. 26 Aug 2021, Shift 2 · Q30Two waves are simultaneously passing through a string and their equations are : y1=A1sin⁡k(x−vt)y_1=\mathrm{A_1}\sin k(x-vt),…MediumNumerical value
  3. 9 Jan 2020, Shift 1 · Q9Three harmonic waves having equal frequency ν\nu and same intensity I0I_0, have phase angles 0,π40, \frac{\pi}{4} and −π4-\frac{\pi}{4}…MediumSingle correct

Shifts: 9 Jan 2020, Shift 1, 26 Aug 2021, Shift 2, 8 Apr 2025, Shift 2.

Same topic

Other ideas in Waves on Strings

Waves on Strings has 14 ideas JEE Main has asked; 5 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas