Question

If the object distance is greater than two times its focal length for a convex lens, is the image magnified or diminished?.

Answer 1

1. when the object distance becomes two  times the focal length, the image distance is also two times the focal length, and the magnification is 1. Object distances greater than this produce an image less than life size.

So, that we have a magnified real image, the object distance must be less than two times the focal length.

If the object distance is made to be higher, gradually the image will keep getting closer to focal point. Finally when the image is very far, it would be like parallel incident rays and the image will be at the focal point.