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Question: Answered & Verified by Expert
The principle of LASER action involves
PhysicsSemiconductorsKCETKCET 2007
Options:
  • A amplification of particular frequency emitted by the system
  • B population inversion
  • C stimulated emission
  • D All of the above
Solution:
2052 Upvotes Verified Answer
The correct answer is: All of the above
Laser action involves all the given phenomenon
(i) Amplification of particular frequency
(ii) Population inversion
(iii) Stimulated emission

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