In a pipe closed at one end, air column is vibrating in its second overtone. The column has (a) three nodes and three antinodes. (b) three nodes and four antinodes. (c) two nodes and three antinodes. (d) four nodes and three antinodes.

Answer: (a). NNNAAAClosed pipe, second overtone: L = 5λ/4 Second overtone of a closed pipe: L=(5λ)/(4) (5th harmonic). Pattern from closed end: N A N A N A, i.e. 3 nodes and 3 antinodes. So the answer is (a).

In a pipe closed at one end, air column is vibrating in its second… | MHT CET 2025 (22 Apr, Shift 2)

Q26MHT CET 2025 · 22 APR · SHIFT 2Easy

Organ Pipes & Resonance Tube

In a pipe closed at one end, air column is vibrating in its second overtone. The column has

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Answer: (a)

Second overtone of a closed pipe: $L=\frac{5\lambda}{4}$ (5th harmonic).
Pattern from closed end: N A N A N A, i.e. 3 nodes and 3 antinodes.
So the answer is (a).

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