Optician Practical UPDATED Exam Questions and CORRECT Answers only
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Course
Optician
Institution
Optician
Optician Practical UPDATED Exam
Questions and CORRECT Answers only
a lens focal length may be altered by? - CORRECT Answer- changing the curvature of one
surface
what controls the amount of light that enters the eye? - CORRECT Answer- Iris
lights changing direction as it passes from one medi...
both sides of lens is minus? - CORRECT Answer- biconcave
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