A double-convex thin lens has radii of curvature of magnitude 46 cm, and it is made of glass of index of refraction 1.60. What is the focal length of this lens?
A) infinite
B) -19 cm
C) 38 cm
D) -30 cm
E) 18 cm

Question

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The Answer of A double-convex thin lens has radii of curvature of magnitude 46 cm, and it is made of glass of index of refraction 1.60. What is the focal length of this lens?
A) infinite
B) -19 cm
C) 38 cm
D) -30 cm
E) 18 cm

A Double-Convex Thin Lens Has Radii of Curvature of Magnitude