Multiple Choice
A contact lens is made of plastic with an index of refraction 1.50.The lens has an outer radius of curvature of +2.0 cm and an innerradius of curvature of +2.5 cm.What is its focal length?
A) -20 cm
B) +6.7 cm
C) +10 cm
D) +20 cm
Correct Answer:
Verified
Correct Answer:
Verified
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