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A compound microscope consists of two converging lenses: an objective lens, and an eyepiece placed 15...

A compound microscope consists of two converging lenses: an objective lens, and an eyepiece placed 15 cm behind it. The microscope magnifies a tiny object 0.25 cm in front of the objective lens, forming an enlarged final image at the near point N = 25 cm of a normal human eye.

Part A) The focal length of the eye piece is fe = 5  cm. Neglecting the distance between the human eye and the eyepiece, what is the focal length fo of the objective lens?
Part B) How many times is the final image enlarged compared to the object?

360 times
260 times
160 times
460 times

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