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If the equation of progressive wave is g...

If the equation of progressive wave is given by `y=4 sin pi[(t)/(5)-(x)/(9)+(pi)/(6)]` then, which of the following is correct `?` (Assume SI units )

A

`v= 5 m // sec`

B

`49 pi m//sec`

C

`a=0.04 m`

D

`n=50 Hz`

Text Solution

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The correct Answer is:
B
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