An object is placed 100 cm in front of a lens of focal length 20 cm. A second lens is placed 35 cm beyond the first, this second lens having a focal length of 8.0 cm. How far past the second lens is the final image formed?
A)40 cm
B)35 cm
C)100 cm
D)6.5 cm
E)25 cm

Question

Quizplus · Accepted Answer

The first lens forms an image 25 cm behind the first lens. The second lens then forms an image 15 cm behind the second lens.

An Object Is Placed 100 Cm in Front of a Lens