A doubly convex thin lens is made of glass with an index of refraction of 1.52. The radii of curvature of the faces of the lens are 60 cm and 72 cm. What is the focal length of the lens?
A)
70 cm
B)
63 cm
C)
75 cm
D)
66 cm
E)
58 cm
B
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A. 2.66 s B. 2.23 s C. 1.97 s D. 1.54 s E. 1.02 s
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