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The principal of LASER action involves...

The principal of LASER action involves

A

amplification of particular frequency emitted by the system

B

population inversion

C

stimulated emission

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
D
Laser action involves all of the following.
(i) Amplification of particular frequency.
(ii) Population inversion,
(iii) Stimulated emission
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