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Grade 9General Physics

Why do lasers require mirror at the ends?

Profile image of rishav kumar
12 Years agoGrade 9
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1 Answer

Profile image of Saurabh Koranglekar
6 Years ago
A majority of currentlasers aredesigned withmirrorson bothendsof the resonant cavity to increase the path that light takes through thelasermedium. The emission intensity grows with each pass of light until it reaches an equilibrium level thatisestablished by the cavity andmirrordesign