JEE Main 2024 — Waves and Sound Question with Solution
JEE Main 2024 (06 Apr Shift 2)
Question
Two open organ pipes of lengths and resonate at and harmonics respectively. The difference of frequencies for the given modes is _______ . (Velocity of sound in air )
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Show full solutionCorrect answer: 740
Correct answer
740
Step-by-step explanation
The difference in frequency in open organ pipe
$\begin{aligned}
& \mathrm{f}=\frac{\mathrm{nv}}{2 \mathrm{~L}} \\
& \Delta \mathrm{f}=\frac{6 \mathrm{v}}{2 \times 0.6}-\frac{5 \mathrm{v}}{2 \times 0.9} \\
& \mathrm{v}=333 \mathrm{~m} / \mathrm{s} \\
& \Delta \mathrm{f}=740 \mathrm{~Hz}
\end{aligned}$
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This is a previous-year question from JEE Main 2024, covering the Waves and Sound chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.