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4. Two diverging lenses, each with focal length of -30 cm, are
placed 20 cm apart. If an object is placed 10 cm to the left of
Lens 1, then someone standing to the far right looking through
both lenses sees a single final virtual image. How far to the left
of Lens 2 is that final image located?
Object
a) 21.2 cm
d) 12.9 cm
b) 13.8 cm
e) 14.3 cm
c) 15.0 cm
Lens 1
Lens 2

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