Physics - Wave on String Question with Solution | TestHub

$\mathrm{y}=\mathrm{A}{\sin }^2\left(\mathrm{k}\mathrm{x}-\mathrm{\omega }\mathrm{t}+\mathrm{\varphi }\right)$can be rewritten as

$\mathrm{y}=\frac{\mathrm{A}}{2}-\frac{\mathrm{A}}{2}\cos \left(2\mathrm{k}\mathrm{x}-2\mathrm{\omega }\mathrm{t}+2\mathrm{\varphi }\right)$

Therefore the amplitude of the wave is$\frac{\mathrm{A}}{2}$and wavelength of wave is$\frac{\mathrm{\pi }}{\mathrm{k}}$