*help FAST* !15 pts!
What is needed to build a laser?
A. a concave lens and a convex l...
Physics, 04.05.2021 17:50 destiniout04231
*help FAST* !15 pts!
What is needed to build a laser?
A. a concave lens and a convex lens that are fully reflective.
B. Two partially reflective mirrors
C. Two fully reflective mirrors
D. A partially reflective mirror and a fully relfective mirror.
Answers: 2
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