It was observed that when the distance between an object and a lens decreases, the size of the image increases. What is the nature of this lens? If you keep on decreasing the distance between the object and the lens, will you still able to obtain the image on the screen? Explain.
If the size of the image increases as the distance between the object and lens decreases, then the nature of the lens is a convex type.
No, if the distance between object and lens is less than the focal length of the lens, then a virtual image is formed which cannot be obtained on a screen.