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Waves question

2023 · 12 Apr · Shift 1 · Q66
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Waves question

2023 · 12 Apr · Shift 1 · Q66

JEE MainPhysicsWavesNumerical+4 / −1
For a certain organ pipe, the first three resonance frequencies are in the ratio of 1:3:51:3:51:3:5 respectively. If the frequency of fifth harmonic is 405 Hz405 \mathrm{~Hz}405 Hz and the speed of sound in air is 324 ms−1324 \mathrm{~ms}^{-1}324 ms−1 the length of the organ pipe is ‾\underline{\hspace{2cm}}​m\mathrm{m}m.
Numerical answer
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