Dual Nature Of Radiation

An atom absorbs a photon of wavelength \(500 \mathrm{~nm}\) and emits another photon of wavelength \(600 \mathrm{~nm}\). The net energy absorbed by the atom in this process is \(n \times 10^{-4} ~\mathrm{eV}\). The value of n is __________. [Assume the atom to be stationary during the absorption and emission process] (Take \(\mathrm{h}=6.6 \times 10^{-34} ~\mathrm{Js}\) and \(\mathrm{c}=3 \times 10^{8} \mathrm{~m} / \mathrm{s}\) )