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A longitudinal wave is represented by x=...

A longitudinal wave is represented by `x= x_(0) sin 2pi(nt -x//lamda)` . The maximum particle velocity will be four times the wave velocity if :

A

`lamda=(pix_(0))/4`

B

`lamda=2pix_0`

C

`lamda=(pix_(0))/2`

D

`lamda=4pix_(0)`

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