1981 B5

An object 0 is placed 18 centimeters from the center of a converging lens of focal length 6 centimeters as illustrated below.

(a) On the illustration above, sketch a ray diagram to locate the image.

(b) Is the image real or virtual? Explain your choice.

(c) Using the lens equation, compute the distance of the image from the lens.

A second converging lens, also of focal length 6 centimeters, is placed 6 centimeters to the right of the original lens as Illustrated below.

(d) On the illustration above, sketch a ray diagram to locate the final image that now will be formed. Clearly indicate the final image.