The Focal Length of a Converging Lens That Projects the Image

question 40

Multiple Choice

The focal length of a converging lens that projects the image of a lamp,magnified 4 times,onto a screen 3.05 m from the lamp is approximately

• A)11.6 cm
• B)48.8 cm
• C)-11.6 cm
• D)2.04 m
• E)19.2 cm

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