Calculate the frequency of yellow radiation having wavelength 580 Å. (`1Å = 10^-10 m`)

Calculate frequency of yellow radiation having wavelength 5800 Å .

Calculate: (a) wavenumber and (b) frequency of yellow radiation having wavelength 5000Å

The frequency associated with photon of radiation having a wavelength of 6000 Å is

The frequency associated with photon of radiation having a wavelength of 6000 A^0 is

What is the ratio between the energies of two types of radiation whose wavelengths are 6000 Å and 2000 Å respectively.