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A wave is represented by the equetion y...

A wave is represented by the equetion
`y=7 sin(7pi t-0.04pix+(pi)/(3))`
x is in metres and t is in seconds. The speed of the wave is

A

`175 m//s`

B

`49pi m//s`

C

`49//pi m//s`

D

`0.28 pi m//s`

Text Solution

Verified by Experts

The correct Answer is:
a
standard equation
`y=A sin (omegat -kx+phi_(0))`
In a given equetion `omega=7pi, k=0.04pi`
`v=(omega)/(k)=(7pi)/(0.04pi)=175 m//s`
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