Physics

Problem

The displacement of a sound wave is given by

y = 0.02\sin(4\pi x - 200\pi t)

, where

x

is in metres and

t

in seconds. Find the phase difference between the points at

x = 0.25\,\text{m}

and

x = 1.00\,\text{m}

at the same instant. a)

1.5\pi\,\text{rad}

\pi\,\text{rad}

3\pi\,\text{rad}

2\pi\,\text{rad}