Two converging lenses are identical in shape, i.e. they have the same two radii of curvature,
R_(1)and
R_(2), but they are made from different materials. Lens
Ais made from a material with refractive index 1.74 , lens
Bfrom a material with refractive index
n. Lens A is used in a magnifying glass with maximal angular magnification 2.25. Lens B is used in a magnifying glass with minimal angular magnification 1.15. What is the refractive index
nof lens
B? (Assume that the near point is at
d=25cm.) A) 1.52 B) 1.60 C) 1.68 D) 1.80 E) 1.89