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MHT CET 2025 (22 Apr, Shift 1) · Organ Pipes & Resonance Tube

Organ Pipes & Resonance Tube question from MHT CET 2025 (22 Apr, Shift 1)

Q30MHT CET 2025 · 22 APR · SHIFT 1Easy

Organ Pipes & Resonance Tube

An organ pipe has fundamental frequency 80 Hz. If its one end is closed, the frequencies produced will be (in Hz) (Neglect end correction)

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Answer: (c)

Open: $\frac{v}{2L}=80\text{ Hz}$ . Closing one end: $\frac{v}{4L}=40\text{ Hz}$ .
Closed pipe gives only odd harmonics: $40, 120, 200, 280$ .
So the answer is (c).

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