The displacement $y$ of a wave travelling in the x-direction is given by $y = {10^{ - 4}}\sin \,\,\left( {600t - 2x + \frac{\pi }{3}} \right)$ metres, where $x$ is expressed in metres and $t$ in seconds. The speed of the wave-motion, in ..... $ms^{-1}$, is
AIEEE 2003, Easy
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(b) $v = \frac{\omega }{k} = \frac{{600}}{2} = 300m/sec .$
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