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A wave of frequency 500 Hz has a wave ve...

A wave of frequency `500 Hz` has a wave velocity of `350 m//s`.
(a) Find the distance between two points which are `60@` out of phase.
(b) Find the phase difference between two displacement at a certain point at time `10^(-3) s` apart.

Text Solution

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The correct Answer is:
A, B
(a) `Deltaphi =(2pi)/(lambda)Deltax`
`:. Deltax = (lambdaDeltaphi)/(2pi) = (v(Deltaphi))/(2pif)`
`=((350)(pi))/((2pi)(500))`
`=0.116 m`
(b) ` Deltaphi = (omega)Deltat`
`=(2pif)(Deltat)`
`=(2pi)(500)(10^(-3))`
`=pi or 180^(@)`
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