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ETA-I Study Guide (Fiber Optics Installer Certification) (FOI) with Complete Solutions 100% Pass
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ETA-I Study Guide (Fiber Optics Installer Certification) (FOI) with Complete Solutions 100% Pass An optical fiber works based off of a principle known as; - Answer- Total Internal Reflection. The bending of light as it passes from one transparent material into another which has a different re...
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