The first ray, shown above, begins from the tip of the image and travels to the lens parallel to the principal axis. The second ray also leaves from the tip of the object, and travels straight through...The first ray, shown above, begins from the tip of the image and travels to the lens parallel to the principal axis. The second ray also leaves from the tip of the object, and travels straight through the center of the lens. In the Contact Lens simulation below, the Lens Slider allows you to choose between a converging (convex) contact lens and a diverging (concave) contact lens.
If too large a piece of the mirror is used, the rays reflected from the top and bottom edges of the mirror will not pass through the focal point and the image will be blurry. If you consider the small...If too large a piece of the mirror is used, the rays reflected from the top and bottom edges of the mirror will not pass through the focal point and the image will be blurry. If you consider the smaller arrow to be the object and follow the rays backward, the ray diagram makes it clear that if an object is located between the center point and focal point, the image is inverted, larger, and at a greater distance.
