Answer to Question #182709 in Optics for Khushi

Question

What is the difference between spontaneous emission of radiation and stimulated

emission of radiation?

Answer 1

Spontaneous emission of radiation occurs when an atom decays from its excited state into a lower energy level after which it releases energy inform of a photon in random direction while stimulated emission of radiation occurs when an atom or molecule at ground state meets a photon of equal energy to that of atom or molecule current energy level.