The incident photon absorbed by an atom in the ground state E1, thereby leaving the atom in the excited state E2 , is a) spontaneous absorption b) stimulated absorption c) induced absorption d) both b & c

The incident photon absorbed by an atom in the ground state E1, thereby leaving the atom in the

excited state E2 , is
a) spontaneous absorption b) stimulated absorption
c) induced absorption d) both b & c
by

1 Answer

Answer :

d) both b & c
by

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