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MHT CET 2026 (14 May, Shift 2) · Organ Pipes & Resonance Tube

Organ Pipes & Resonance Tube question from MHT CET 2026 (14 May, Shift 2)

Q21MHT CET 2026 · 14 MAY · SHIFT 2Medium

Organ Pipes & Resonance Tube

Two closed organ pipes A and B have the same length and A is wider than B. They resonate in the fundamental mode at frequencies $n_A$ and $n_B$ respectively, then

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Answer: (c)

End correction $e = 0.3d$ , so the effective length is $L + 0.3d$ .
Fundamental $n = \frac{v}{4(L + 0.3d)}$ : the wider pipe A has the larger effective length.
So $n_A < n_B$ , the answer is (c).

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