A Negative Lens with a Focal Length of -10

question 47

Multiple Choice

A negative lens with a focal length of -10.0 cm is on the same axis as a positive lens with a focal length of +20.0 cm as illustrated. The distance between the lenses is 20.0 cm. A real object 3.00 cm high is placed 20.0 cm to the left of the negative lens. After the light has passed through both lenses, the image is

• A) 3.0 cm high and virtual.
• B) 1.0 cm high and virtual.
• C) 1.0 cm high and real.
• D) 3.0 cm high and real.
• E) None of these is correct.

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