Question

The speed of light is `3*10^8` `m``/s`. What is the frequency of microwaves with a wavelength of `1` `cm`?

Answer 1

The frequency is `=30GHz`

Explanation:

The speed of light is `c=3*10^8ms^-1`

The wavelength is `lambda=10^-2m`

THe frequency is

`nu=c/lambda=(3*10^8)/10^-2=3*10^10Hz=30GHz`