Calculate the ratio of the population numbers N1 N2 for the

Last updated: 6/7/2023

Calculate the ratio of the population numbers N1 N2 for the two energy levels E2 and E1 when the material is at room temperature 400K and the difference between the energy levels is 0 35 eV What is the wavelength A of a photon which will be emitted in the transition from E2 to E1