The term stimulated emission would be used in explaining the operation of
A) an electron microscope.
B) an X-ray tube.
C) a microwave oven.
D) a laser.

Question

Quizplus · Accepted Answer

Stimulated emission is the process by which an incoming photon of a specific frequency can stimulate an excited atomic electron to drop to a lower energy level, resulting in the emission of a second photon of the same frequency, phase, and direction as the incoming photon. This principle is fundamental to the operation of lasers.

The Term Stimulated Emission Would Be Used in Explaining the Operation