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A cheap replica is made of an old camera. If the lens in the old camera...

A cheap replica is made of an old camera. If the lens in the old camera was glass, and the lens in the replica is plastic with a smaller index of refraction than the glass, in order to have the same focal length the plastic lens will have to ___.

a. have the same curvature as the glass lens

b. be less strongly curved than the glass lens

c.be more strongly curved than the glass lens

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