Final answer:
When an object is placed infinitely far from a converging lens, the resulting image will be formed at the focal point of the lens. In this case, the first lens has a focal length of 25 cm, so the image of the object formed by the first lens will be 25 cm behind it. Then, the second lens with a focal length of 5 cm will create a new image by converging the light rays from the first image. The distance from the second lens to the final image can be found using the lens equation: 1/f = 1/do + 1/di.
Step-by-step explanation:
When an object is placed infinitely far from a converging lens, the resulting image will be formed at the focal point of the lens.
In this case, the first lens has a focal length of 25 cm, so the image of the object formed by the first lens will be 25 cm behind it.
Then, the second lens with a focal length of 5 cm will create a new image by converging the light rays from the first image. The distance from the second lens to the final image can be found using the lens equation: 1/f = 1/do + 1/di.
Let's assume the final image distance as di. We know that the object distance, do, is infinity. Plugging these values into the lens equation, we get 1/5 = 0 + 1/di. Solving for di, we find that the final image is located at di = 5 cm behind the second lens.