Question

Calculate th frequency wavelength associated with radiation of wavelength 6000ao

Answer 1

The frequency and wavelength of an electromagnetic waves are related as

$fl=c$, where $f$ is the frequency , $l$ and $c$ speed of light.

So,

$f=\frac{c}{l}$. Now,

$1\;A^o=1*10^{-10}\;m$.

The frequency is

$f=\frac{3*10^8}{6000*10^{-10}} \\ f=5*10^{14}\;Hz$