For a certain organ pipe | Sound Wave Physics JEE Main 2023

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JEE MAIN 2023

12-04-2023 S1

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For a certain organ pipe, the first three resonance frequencies are in the ratio of $1: 3: 5$ respectively. If the frequency of fifth harmonic is 405 Hz and the speed of sound in air is $324 \mathrm{~ms}^{-1}$ the length of the organ pipe is $\_\_\_\_$ m.

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