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Question
The use of mirrors in laser cavity helps in :
The use of mirrors in laser cavity helps in :
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Solution
The correct option is B Stimulated emission
Mirror helps in creating 'optical cavity', i.e., it makes excited photon to travel across the active material multiple times. which stimulate atoms of material to emit more and more photons.This process is called stimulated emission and mirror helps in amplifying the effect.
Mirror helps in creating 'optical cavity', i.e., it makes excited photon to travel across the active material multiple times. which stimulate atoms of material to emit more and more photons.
This process is called stimulated emission and mirror helps in amplifying the effect.
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