An object is 12 cm in front of a converging lens with focal length 4 cm. Where is the image?
A)8.0 cm in front the lens
B)8.0 cm behind the lens
C)6.0 cm in front of the lens
D)6.0 cm behind the lens
E)4.0 cm in front of the lens

Question

Quizplus · Accepted Answer

Using the lens formula 1/f = 1/v - 1/u, where f is the focal length (4 cm), u is the object distance (-12 cm), and v is the image distance. Solving gives v = 6 cm, indicating the image is 6.0 cm behind the lens.

An Object Is 12 Cm in Front of a Converging