You are in biology class and wish to look at a slide of petrified wood. The microscope you are assigned has only two lenses: an objective lens and an eye piece. The objective lens has a focal length of 4.5 mm and the eyepiece has a focal length of 10.0 mm (both are convex lenses). The distance between the two lenses is 20 mm. If the object viewed by the objective lens is 1.0 mm in height and is 7.0 mm away from the objective lens:
a.) Find the final image distance of the object.
b.) Find the height of hte final image.