JEE Main 2023 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 8 April 2023, Shift 1, Physics Q51

Question 51 of 90 in this shift, Physics question 21 of 30, Section B.

An organ pipe

40\ \mathrm{cm}

long is open at both ends. The speed of sound in air is

360\ \mathrm{ms^{-1}}

. The frequency of the second harmonic is ________ Hz.

Official answer

900

NTA final key.

Chapter: Waves
Topic: Resonance in Air Columns
Idea tested: Open Organ Pipe Harmonics

Same idea in other shifts

Asked 3× in all

6 Apr 2024, Shift 2 · Q51Two open organ pipes of lengths 60 cm and 90 cm resonate at $6^{\text{th}}$ and $5^{\text{th}}$ harmonics respectively. The difference of…EasyNumerical value
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

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.