Question 107: Waves

Question

In the wave equation
$
y=0.5 \sin \frac{2 \pi}{\lambda}(400 \mathrm{t}-x) \,\mathrm{m}
$
the velocity of the wave will be:

Accepted Answer

${v_{wave}} = \left| {{{coefficient\,of\,t} \over {coefficient\,of\,x}}} \right|$
$ = {{400} \over 1} = 400$ m/s

Answer

200 m/s

Answer

200$\sqrt2$ m/s

Answer

400 m/s

Answer

400$\sqrt2$ m/s

Waves