c) A diverging lens with a focal length of -15.0 cm is placed 12.0 cm to the right of the converging lens with a focal length of 18.0 cm. The final image that formed the virtual image is located 37.5 cm to the left of the diverging lens. Determine the position of the object that is placed to the left of the converging lens.

true or false

A diverging lens with focal length |f = 18.0 cm produces an image with a magnification of +0.620. What are the object and image distances? (Include the sign of the value in your answers.) cm cm object distance image distance

A 6.25 mm high firefly sits on the axis of, and 12.9 cm in front of, the thin lens A, whose focal length is 6.79 cm. Behind lens A there is another thin lens, lens B, with a focal length of 23.9 cm. The two lenses share a common axis and are 56.3 cm apart. a) Is the image of the firefly that lens B forms real or virtual?. b) How far from lens B is this image located? Express the answer as a positive number. c) What is the height of this image? Express the answer as a positive number. d) Is this image upright or inverted with respect to the firefly?

Two thin lenses with focal lengths of magnitude 15.0 cm, the first diverging and the second converging, are placed 12.00 cm apart. An object 3.00 mm tall is placed 5.50 cm to the left of the first (diverging) lens. Where is the image formed by the first lens located? Please provide a detailed explanation of the process. How far from the object is the final image formed? Please describe the steps taken to reach to your conclusion.

An object is 8.5 cm away from a thin convex lens with focal length of f1 = 3.1 cm. 8.0 cm away from the first convex lens is a second convex lens on the same optical axis with focal length of f2 = 2.1 cm. a) Draw a principal ray diagram for the optical system including the different focal lengths, image and object distances. b) Describe the nature (real or virtual) and orientation of the final image relative to the object. c) Calculate the position of the final image after the two lenses and its magnification.

How could you very quickly make an approximate measurement of the focal length of a converging lens? Could the same method be applied if you wished to use a diverging lens? Explain.

4.To measure the focal length of a diverging lens, a converging lens is placed in contact with it as shown to the right. The sun's focused by this Image point made by first lens (object point for second lens) are rays combination at a point 28.5 cm behind Image made by second lens the lenses. If the converging lens has a focal length fc of 16 cm, what is the focal length of the diverging lens? (final image) fc -fr =28.5 cm

2 converging lenses, both with a focal length of 10.0 cm are separated by a distance of 35.0 cm. An object is place 50.0 cm in front of the first lens. Find the location of the final image as well as the total magnification