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vucollegeguy
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Homework Statement
a) What is the focal length of the eye-lens system when viewing an object at infinity? Assume that the lens-retina distance is 1.8cm.
b) What is the focal length of the eye-lens system when viewing an object 35cm from the eye? Assume that the lens-retina distance is 1.8cm .
Homework Equations
The Attempt at a Solution
I assumed that for part A that 1/inf went to zero but that answer was wrong. I'm not sure How to calculate this. Please help if you can.