Physics

Problem

For the wave

y=0.01\sin(kx-\omega t)

with

x

in metres and

t

in seconds, which one of the following pairs gives permissible SI units for

k

and

\omega

respectively so that the argument of the sine function is dimensionless? a)

\text{m}^{-1},\; \text{s}

\text{m},\; \text{s}^{-1}

\text{m}^{-1},\; \text{s}^{-1}

\text{m},\; \text{s}