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The active medium of a helium- neon laser is made up of __________ ratio of helium and neon.
: 8
: 7
: 9
10 : 1
10 : 1
Quick Summary: Practice and solve "The active medium of a helium- neon laser is made up of __________ ratio of helium and neon...." for Electrical - Electrical Materials. The correct answer is Option D: 10 : 1. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(d) **