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An open organ pipe has a fundamental fre...

An open organ pipe has a fundamental frequency of `300 H_(Z)` . The first overtone of a closed organ pipe has the same frequency as the first overtone of this open pipe . How long is each pipe ? (Speed of sound in air = `330 m//s`)

A

`41.25 cm`

B

`42.3 cm`

C

`49.5 cm`

D

`40.5 cm`

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A
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