A convex lens produces a magnification of +5. The object is placed;

Magnification produced by a concave lens is always:

In order to obtain a magnification of, -3 (minus 3) with a convex lens, the object should be placed:

If a Magnification of, -1 (minus 1) is obtained by using a converging lens, and then the object has to be placed:

To obtain a magnification of, -0.5 with a convex lens, the object should be placed: