For a diverging lens with one flat surface,the radius of curvature for the curved surface is 25.0 cm.What must the index of refraction be so that the focal length is -17.0 cm?
A)0.680
B)1.68
C)2.47
D)1.74
E)1.47

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The Answer of For a diverging lens with one flat surface,the radius of curvature for the curved surface is 25.0 cm.What must the index of refraction be so that the focal length is -17.0 cm?
A)0.680
B)1.68
C)2.47
D)1.74
E)1.47

For a Diverging Lens with One Flat Surface,the Radius of Curvature