When a wave travels in a medium, the particle displacement is given by $y\,(x,t) = 0.03\sin \pi (2t - 0.01x)$ where $y$ and $x$ are meters and $t$ in seconds. The phase difference, at a given instant of time between two particle $25 m$. apart in the medium, is
A$\frac{\pi }{8}$
B$\frac{\pi }{4}$
C$\frac{\pi }{2}$
D$\pi$
Medium
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B$\frac{\pi }{4}$
b (b) $y(x,\;t) = 0.03\sin \pi (2t - 0.01x)$ $ = 0.03\sin (2\pi t - 0.01\pi x)$
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