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NEET 2016 (Phase 2) · Organ Pipes & Resonance Tube

Organ Pipes & Resonance Tube question from NEET 2016 (Phase 2)

Q112NEET 2016 · PHASE 2Medium

Organ Pipes & Resonance Tube

The second overtone of an open organ pipe has the same frequency as the first overtone of a closed pipe L metre long. The length of the open pipe will be

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Answer: (b)

Open pipe second overtone: $\frac{3v}{2L_o}$ ; closed pipe first overtone: $\frac{3v}{4L}$ .
$\frac{3v}{2L_o} = \frac{3v}{4L} \Rightarrow L_o = 2L$
So the answer is (b) $2L$ .

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