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Saturday, 31 October

JEE Main · Physics · Waves

Open Organ Pipe Harmonics

JEE Main asked Open Organ Pipe Harmonics 3 times in 3 of the 108 shifts Lumi analysed, in 2023 and 2024. It belongs to Resonance in Air Columns, in Waves (Physics). The longest wait between two years asking it was 1 year. In 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
2 of 8
First asked
2023
last in 2024
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2023 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.050.10’170’200’210’220.07’230.09’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 1 in 12 shifts · 2024: 2 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
  • 20242 of 18
  • 20231 of 12
  • 20220 of 24
  • 20210 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: calculation.

  • Closed pipe length from open pipe overtone
  • Frequency difference of open pipe harmonics

Difficulty

Easy 3Medium 0Hard 0

2 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. 31 Jan 2024, Shift 1 · Q49The fundamental frequency of a closed organ pipe is equal to the first overtone frequency of an open organ pipe. If length of the open…EasySingle correct
  2. 6 Apr 2024, Shift 2 · Q51Two open organ pipes of lengths 60 cm and 90 cm resonate at 6th6^{\text{th}} and 5th5^{\text{th}} harmonics respectively. The difference of…EasyNumerical value
  3. 8 Apr 2023, Shift 1 · Q51An organ pipe 40 cm40\ \mathrm{cm} long is open at both ends. The speed of sound in air is 360 ms−1360\ \mathrm{ms^{-1}}. The frequency of the…EasyNumerical value

Shifts: 8 Apr 2023, Shift 1, 31 Jan 2024, Shift 1, 6 Apr 2024, Shift 2.

Same topic

Other ideas in Resonance in Air Columns

Resonance in Air Columns has 9 ideas JEE Main has asked; 3 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas