Question

if N, and N, are the numbers of atoms in ground state and excited state respectively, then at populatio ​

Answer 1

Answer:

n and n is the atom

Explanation:

eg. w and w is matter then 14626 population of atom

Answer 2

Answer:

N1 > N2

Explanation:

When N1 > N2, the population of atoms in the ground state is higher than that in the exited state. In this case, absorption is dominant and hence, the intensity of light wave decreases exponentially. 6. To achieve optical amplifications, it is essential to create a non-equilibrium distribution of atoms.