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A plane longitudinal wave of angular frequency omega=1000 rad Is is travelling along positive x direction in a homogeneous gaseous medium of density d = 1kgm^(-3). Intensity of wave is I = 10^(-10) W.m^(-2) and maximum pressure change is (Delta P)_m = 2 xx10^(-4) Nm^(-2) .Assuming at x = 0, initial phase of medium particles to be zeroAmplitude of the travelling wave is

Answer»

`10^(-6) m`
`10^(-7) m`
`10^9 m`
`2 xx 10^(-8) m`

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