Social Sciences, asked by santu9760, 1 year ago

What was the active medium used in the first working laser ever constructed?
A.A diamond block
B.Helium-neon gas
C.A ruby rod
D.Carbon dioxide gas

Answers

Answered by Vaishnavi18
0
the active medium used in the first working laser ever constructed was a ruby rod
Answered by Anonymous
0
ĀNSWĒR ⏬⏬

C.A ruby rod

THANKS ✌
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