Q. The principle of laser action involves
A) Amplification of particular frequency emitted by the system
B) Population inversion
C) Stimulated emission
D) All of the above
Explanation
(d) Laser action involves all the given phenomenon
(i) Amplification of particular frequency
(ii) Population inversion
(iii) Stimulated emission
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.