A transverse wave propagating along x-axis is represented by y(x, t) = 8.0 sin (0.5 $\pi $x $-$ 4$\pi $t $-$ $\pi $/4) where x is in metres and t is in seconds. The speed of the wave is
8 m/s
4$\pi $ m/s
0.5$\pi $ m/s
$\pi $/4 m/s.
Solution
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