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What should the length of an open pipe b...

What should the length of an open pipe be if it is to resonate with a closed pipe 1 m long at their fundamental frequencies ?

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(i) Equaring fundamental frequencies of open and closed end pipes .
(b) `n_(o) = (V)/(2l_(c)) , n_(c) = (V)/(4l_(c))`
(iii) twice
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