A 80-cm focal length thin lens is placed in contact with one of 59.5 cm focal length.A 2.3 cm tall object is placed 55 cm in front of the combination.What is the size of the image?

Question

Quizplus · Accepted Answer

The image formed by the first lens is the object for the second lens. The image formed by the first lens is virtual and 2.3 cm tall. The second lens forms a real image of this virtual image. The magnification of the second lens is -3.7, so the final image is 3.7 cm tall.

A 80-Cm Focal Length Thin Lens Is Placed in Contact