What is the frequency of light with a wavelength of 480 nm

Answer

`v=6.25xx10^(14)s^(-1), bar(v)=2.08xx10^(6)m`

Explanation

`lambda=480nm=480 xx10^(-9)m, c=3xx10^(8)m^(-1)`
`v=(c)/(lambda)=((3xx10^(8)ms^(-1)))/((480xx10^(-9)m))=(3)/(48)xx10^(16)s^(-1)=6.25xx10^(14)s^(-1)`
Wave number `(bar(v))=(1)/(lambda)=(1)/(480xx10^(-9)m)=2.08xx10^(6)m`