MCQ
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$\frac{\pi }{8}$
- ✓$\frac{\pi }{4}$
- C$\frac{\pi }{2}$
- D$\pi$
