A 2.0-cm-tall object is 23 cm in front of a converging lens that has a 40 cm focal length. Calculate the image position.Calculate the image height. Type a positive value if the image is upright and a negative value if it is inverted.

The figure shows an object and its image formed by a thin lens. Assume that d1 = 0.781 m, d2 = 0.604 m, and h = 7.50E-2 m. What is the image height (in m; answer sign and magnitude)?

An object is placed 40 cm from a converging lens with a focal length of 20 cm. The image formed by this lens becomes the object for a second diverging lens with a focal length of −15 cm. The distance between the two lenses is 50 cm. Calculate the final image distance formed by this two-lens system. Draw a diagram of the optical system.

A 1.0 cm tall light bulb is placed 50 cm from a convex lens that has a focal distance of 40 cm. Which of the following statements is true of the bulb's image?   a. The image is virtual, the distance to the image is 12.5 cm and the height of the image is 0.25 cm tall.   b. The image is virtual, the image distance is -200 cm and the height of the image is 4.0 cm tall.   c. The image is real, the distance to the image is 22.2 cm and the height of the image is 0.44 cm tall.   d. The image is real, the distance to the image is 200 cm and the height of the image is 4.0 cm tall.   e. The image is virtual, the distance to the image is 22.2 cm and the height of the image is 0.44 cm tall.