Physics - Sound Wave Question with Solution | TestHub

Two progressive waves ${\mathrm{Y}}_1=\sin 2\pi \left(\frac{\mathrm{t}}{0\cdot 4}-\frac{\mathrm{x}}{4}\right)$ and ${\mathrm{Y}}_2=\sin 2\pi \left(\frac{\mathrm{t}}{0\cdot 4}+\frac{\mathrm{x}}{4}\right)$ superpose to form a standing wave. $\mathrm{x},{\mathrm{Y}}_1$ and ${\mathrm{Y}}_2$ are in SI system. Amplitude of the particle at $\mathrm{x}=0.5\mathrm{m}$ is $\left[\sin 45^{\circ }=\cos 45^{\circ }=\frac{1}{\sqrt{2}}\right]$