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Lens-Maker's Formula: a Double-Concave Lens Has Equal Radii of Curvature

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Lens-maker's formula: A double-concave lens has equal radii of curvature of Lens-maker's formula: A double-concave lens has equal radii of curvature of   An object placed   from the lens forms a virtual image   from the lens. What is the index of refraction of the lens material? A)  1.90 B)  1.98 C)  1.82 D)  1.77 An object placed Lens-maker's formula: A double-concave lens has equal radii of curvature of   An object placed   from the lens forms a virtual image   from the lens. What is the index of refraction of the lens material? A)  1.90 B)  1.98 C)  1.82 D)  1.77 from the lens forms a virtual image Lens-maker's formula: A double-concave lens has equal radii of curvature of   An object placed   from the lens forms a virtual image   from the lens. What is the index of refraction of the lens material? A)  1.90 B)  1.98 C)  1.82 D)  1.77 from the lens. What is the index of refraction of the lens material?


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