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A transerse wave propagating along x-axi...

A transerse wave propagating along x-axis is represented by
`y(xx ,t) = 8 sin ( 0.5 pixx - 4pit-pi/4),`
where,x is in metre and t is in second, the speed of the wave is

A

`4 pi m//s `

B

`0.5 pi m//s `

C

`(pi)/(4) m//s `

D

`8 m//s `

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The correct Answer is:
D
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