A contact lens is made of plastic with an index of
A contact lens is made of plastic with an index of refractionof 1.48. The lens has an outer radiusof curvature of +1.97 cm and an inner radius of curvature of +2.58 cm. What is the focal length of the lens?
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a 19-kg block slides down a frictionless ramp the top of the rampis 15m above the ground the bottom of the ramp is 025m
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a contact lens is made of plastic with an index of refractionof 148 the lens has an outer radiusof curvature of 197 cm
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