Question

Population inversion is a non ewuilibrium condition in whiich

Answer 1

Your question is:-

Population inversion is a non equilibrium condition in which

Answer:-

Population inversion is a state of a system, for example a laser gain medium, where a higher-lying energy level is more strongly populated than a lower-lying level. ... This cannot occur under conditions of thermal equilibrium, where the level populations are described by a Boltzmann distribution