A Two Lens Magnifying System Uses Lenses of Focal Lengths

Multiple Choice

A two lens magnifying system uses lenses of focal lengths 2.5 and 9.5 cm for the objective and eyepiece respectively.The two lenses are positioned 23 cm apart.An object for study is placed 3.0 cm in front of the objective lens.Find the magnification of the final image.

A) 15
B) 6.3
C) 22
D) 32
E) 47