After the first photons of light are produced, which process is responsible for amplification of the light?

A. Blackbody radiation

B. Stimulated emission

C. Planck's radiation

D. Einstein oscillation

Answer: Option B

Solution(By Examveda Team)

The word "laser" is actually an acronym for light amplification by stimulated emission of radiation. Atoms or molecules of the active medium that have been excited to a higher energy level are stimulated by a passing photon to relax to a lower energy level and emit a photon that is indistinguishable from the passing photon, thereby increasing the number of photons like the incident one.