A travelling wave is described by the equation $y(x, t)=[0.05 \sin (8 x-4 t] \;m$
The velocity of the wave is $.....ms ^{-1}$ [all the quantities are in SI unit]
JEE MAIN 2023, Easy
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From the given equation $k =8\,m ^{-1}$ and $\omega=4\,rad / s$ Velocity of wave $=\frac{\omega}{ k }$
$v =\frac{4}{8}=0.5\,m / s$
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