magnifying glasses

Yo! I know we've been doing photoelectric effect and all that quantum physics stuff, but I'm gonna talk about magnifying glasses cause I finally really understand how they work. Magnifying glasses use a convex lens or a converging lens to make the virtual image that you see. In lenses, the virtual image is on the same side as the object, and in a convex lens, if the distance from the object to the lens is less than the distance from the lens to its focus, a virtual image that is larger than the object is formed. As a result, you see a magnification of the words that you may be reading. However, if the distance from the object to the lens is more than the distance from the lens to its focus, a smaller, inverted, real image is formed. That explains why you have to hold the magnifying glass at a certain distance for its desired effect.