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A wave travelling in the + ve x-directio...

A wave travelling in the + ve x-direction having displacement along y- direction as 1m, wavelength `2pi m` and frequency of `1/piHz` is represented by

A

`y = sin (x-2t)`

B

`y = sin (2pix - 2pit)`

C

`y = sin (10pix-20pit)`

D

`y = sin (2pix - 2pit)`

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