Physics - Wave on String Question with Solution | TestHub

Equation of vibration $\begin{array}{rl}y& =1\cos 2\pi t\sin 2\pi x\\ & =1\cos 2\pi \sin \frac{\pi x}{1/2}\end{array}$ Comparing this equation with $y=a\cos 2\pi \sin \frac{\pi x}{\lambda }\Rightarrow a=1$ Minimum length of string $=\frac{1}{2}a=\frac{1}{2}\times 1=\frac{1}{2}m$