Exam (elaborations)
Optician Practical Exam Study Material |134 Questions with 100% Correct Answers | Verified | Latest Update
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a lens focal length may be altered by? - ️️changing the curvature of one surface what controls the amount of light that enters the eye? - ️️Iris lights changing direction as it passes from one medium to another is called what? - ️️refraction meniscus, equiconcave and flat conca...
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