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A plane longitudinal wave of angular fre...

A plane longitudinal wave of angular frequency `omega`=1000 rad/s 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 zero
Amplitude of the travelling wave is
(a) `10^(-6) m`
(b) `10^(-7) m`
(c) `10^(-9) m`
(d) `2 xx 10^(-8) m`

A

`10^(-6)` m

B

`10^(-7)`m

C

`10^(9)m`

D

`2 xx 10^(-8)` m

Text Solution

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The correct Answer is:
C
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