JEE Main 2026 — Waves and Sound Question with Solution
JEE Main 2026 (24 January Shift 2)
Question
The fifth harmonic of a closed organ pipe is found to be in unison with the first harmonic of an open pipe. The ratio of lengths of closed pipe to that of the open pipe is . The value of is .
Choose an option
Show full solutionCorrect option: D
Correct answer
D2
Step-by-step explanation
Fifth harmonic of closed organ pipe equals first harmonic of open pipe:
Since the ratio is , we get .
Since the ratio is , we get .
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This is a previous-year question from JEE Main 2026, 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.