In order to make an image real, inverted and enlarged, the object with a convex lens of focal length $f$, the object should be placed _____?

In order to make an image real, inverted, and enlarged, the object with a convex lens of focal length $f$, the object should be placed between $f$ and $2f$ of the lens.
If the surface of the lens is bent outwards, then it is a convex lens. A convex lens converges a beam of light coming from outside and focuses it to a point on the other side. If an object is kept between $f$ and $2f$ of the convex lens, the image formed will be real, inverted and enlarged.