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n1 and n2 are the fundamental frequencie...

`n_1 and `n_2` are the fundamental frequencies of two open pipes of same diameter . If these two are joined end to end to form as a single pipe, the fundamental frquency of the new pipe formed is

A

`n_1 n_2 / 2n_2 + n_1`

B

`2n_2 n_1 / 2n_2 + n_1`

C

`2n_2 n_1 / n_1 + n_2`

D

`n_2 + 2n_1 / n_1 n_2`

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