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Object O1 is 13.7 cm to the left of a converging lens with a 11.9-cm focal length. A second lens is positioned 10.0 cm to the right of the first lens and is observed to form a virtual image at the position of the original object O1.

(a) What is the focal length of the second lens?

______cm

(b) What is the overall magnification of this system?

______

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