The key process of a laser is
A) stimulated emission.
B) Bremsstrahlung.
C) electron diffraction.
D) microwave absorption.

Name: The key process of a laser is A) stimulated emission. B) Bremsstrahlung. C) electron diffraction. D) microwave absorption.
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Question

Quizplus · Accepted Answer

Stimulated emission is the fundamental process in a laser where an incoming photon causes an excited electron to drop to a lower energy level, emitting a second photon identical to the first. This process amplifies light, making laser action possible.

The Key Process of a Laser Is