1. The problem statement, all variables and given/known data I need help with this general question. Why is it impossible to focus a virtual image on a screen, ( object is placed between F and lens). 2. Relevant equations this experiment we had a candle on one side, a converging lens in the middle, and at the other end a screen to tell us where the image was formed and how far away from the lens. 3. The attempt at a solution Well, this forms a virtual image right, but how can i measure were the image would be on the screen (paper), is it possible?