1.

When open pipe is closed from one end, then third overtone of closed pipe is higher in frequency by 150 Hz than second overtone of open pipe. The fundamental frequency of open end pipe will beA. 75 HzB. 150 HzC. 225 HzD. 300 Hz

Answer» Correct Answer - D
`n_(3)-n_(2)=150`
`7n_(c)-3n_(0)=150`
`7n_(c)-3xxn_(0)=150`
`7n_(c)-6n_(c)=150`
`n_(c)=150`
But, `n_(0)=2n_(c)`
`:.n_(0)=2xx150=300Hz.`


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