I really need the solution to this homework assignment Finding the focal lenght and distance of an object?

A diverging lens has a focal length of -40cm. An object of height 4cm is placed 60 cm in front the lens,





a.locate the position of the image.


b.find the magnification of the lens.





c. find the height of the image.I really need the solution to this homework assignment Finding the focal lenght and distance of an object?
Check this out. It has diagrams and everything:





http://www.usa.canon.com/industrial_bctv鈥?/a>

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