Following is a problem from book: "The near point of a person's eye is 53.0 cm. To see objects clearly at a distance of 24.0 cm, what should be the focal length of the appropriate corrective lens?"
My book says the image distance(from the center of lens) is negative. Why is that so? Isn't the image distance negative when an image is formed on the same side of the object? However, isn't that not the case. My understanding of the scenario is that the lens is in between the object and the image. With object on one side of lens and image on opposite.