Physics - Wave on String Question with Solution | TestHub

Compare with $y=A\sin (\omega t+kx)$: $A=10^{-4}\mathrm{m}$, $\omega =60\mathrm{rad}/\mathrm{s}$, $k=2{\mathrm{m}}^{-1}$.

$v=\omega /k=30\mathrm{m}/\mathrm{s}$; (+) sign means travel along $-x$. (A) correct.

$\lambda =2\pi /k=\pi \mathrm{m}$. (B) correct.

$f=\omega /2\pi =30/\pi \mathrm{Hz}$. (C) correct.

Amplitude $=10^{-4}\mathrm{m}$. (D) correct.