Answer:
the object is placed at 2f
Explanation:
Converging lens are convex lens, as the name emanates , they are light rays that converge at a point via a certain distance at the opposite side. Often times , any incident rays that is moving and is parallel to the principal axis is usually termed as Converging lens.
So when the object is placed at 2f , the image will be formed at 2f to the right for converging lens.
