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A plano concave lens is silvered at the plane surface. How does it behave? |
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Answer» SOLUTION :It BEHAVES like a convex mirror. NOTE: `(1)/(F)=- (1)/(f)+(1)/(f_(m))- (1)/(f)` `(1)/(F)= (2)/(f)"" because r =OO, f_(m)=oo` for a plane surface `F=(-f)/(2)` |
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