Question bank/JEE Main/Physics

The second overtone of an open organ pipe A and that of a closed
pipe B have the same frequency at a given temperature. It follows that
the ratio of the

Alength of A and B is 4: 3Bfundamental frequencies of A and B is 5: 6Clength of B to length of A is 5: 6Dfrequencies of first overtone of A and B is 10: 9

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Source: Grass-G / P-09 Physics paper 26 October.docx