A 5.95 mm high firefly sits on the axis of, and 11.7 cm in front of, the thin lens A, whose focal length is 5.61 cm. Behind lens A there is another thin lens, lens B, with a focal length of 24.1 cm. The two lenses share a common axis and are 64.5 cm apart. Is the image of the firefly that lens B forms real or virtual? virtual real How far from lens B is this image located? Express the answer as a positive number. image distance from lens B: 43.71 cm What is the height of this image? Express the answer as a positive number. 4.841 image height: mm

An object is placed 30.0cm to the left of lens A. Lens B is placed 40.0cm to the right of lens A. Lens A is converging and has a focal length of 20.0cm . Lens B is diverging and has a focal length of −30.0cm . a. What is the final image position relative to lens B? (Include the + or – sign.) b. What is the overall magnification? (Include the + or – sign.) c. Is the final image real or virtual? d. Is the final image upright or inverted?

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?

Part A: State the characteristics of the image formed by a converging lens when the object is distance is less than the focal length of the lens. An object (2.0 mm high) is place at a distance of 30 cm in front of a diverging lens of focal length 20 cm.  Calculate the image distance of the image produced by the lens and verify all the characteristics listed in question (2).