Question

If y = 0.02 sin (30x – 200t) (SI units), the frequency of the wave is

Answer 1

Frequency of the wave will be 31.84 Hz

Step-by-step explanation:

We have given the equation
`y=0.02sin(30x-200t)`-----eqn 1

The standard equation of sine wave is given by
`y=Asin(kx-\omega t)`----eqn 2

On comparing eqn 1 and eqn 2

`\omega =200`

Angular frequency
`\omega` is given by
`\omega =2\pi f`

So
`200=2* 3.14* f`

`f=31.84Hz`