Answer:
[tex]4.58\times 10^{14}Hz[/tex] [tex]5.825\times 10^{14}Hz[/tex] [tex]6.31\times 10^{14}Hz[/tex]
Explanation:
We know that there is a relation between the speed of light ,frequency and wavelength.This relation can be given as [tex]v=\nu \lambda[/tex] where v is speed of light [tex]\nu[/tex] is frequency of light [tex]\lambda[/tex] is wavelength of light
In first case we have given λ=655 nm
so using formula [tex]v=\nu \lambda[/tex]
[tex]3\times 10^8=655\times 10^{-9}\times \nu[/tex]
[tex]\nu =4.58\times 10^{14}[/tex] Hz
In second case we have wavelength 515 nm so by using above formula
[tex]3\times 10^8=515\times 10^{-9}\times \nu[/tex]
[tex]\nu =5.825\times 10^{14}\ Hz[/tex]
In third case we have wavelength 475 nm
so [tex]3\times 10^8=475\times 10^{-9}\times \nu[/tex]
[tex]\nu =6.31\times 10^{14}Hz[/tex]