1. Images in a Converging Lens (part 1)
When an object is far away from the lens (greater than the focal length) then the image will appear upside down. In this video I show you how to construct a ray diagram to find out where it will form.
2. Images in a Converging Lens (part 2)
Object closer than the focal length will appear enlarged and 'virtual'. this is how.
3. Images in a Diverging Lens
This is how objects appear when viewed through a diverging lens.