Physics - Wave on String Question with Solution | TestHub

$y=12 \mathrm{sin }(5t-4x)$
Comparing in$y=A\sin \left(wt-kx\right)$
We have$A=12, w=5 \mathrm{a}\mathrm{n}\mathrm{d} k=4$
$\left(wt-kx\right)=$phase difference$=\frac{\pi }{2}$
$\therefore \left|5t-4x\right|=\frac{\pi }{2}$

When$t=0, 4x=\frac{\pi }{2}$
$\therefore x=\frac{\pi }{8} \mathrm{c}\mathrm{m}$