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Waves question

2022 · 25 Jun · Shift 1 · Q65
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Waves question

2022 · 25 Jun · Shift 1 · Q65

JEE MainPhysicsWavesNumerical+4 / −1
The first overtone frequency of an open organ pipe is equal to the fundamental frequency of a closed organ pipe. If the length of the closed organ pipe is 20 cm. The length of the open organ pipe is ‾\underline{\hspace{2cm}}​ cm.
Numerical answer
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