An Object Is 20 Cm to the Left of a Lens

question 35

Multiple Choice

An object is 20 cm to the left of a lens of focal length +10 cm. A second lens, of focal length +12.5 cm, is 30 cm to the right of the first lens. The distance between the original object and the final image is:

• A) 28 cm
• B) 50 cm
• C) 100 cm
• D) 0
• E) infinity

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