Question

To obtain an image for the same size as that of an object with the help of a convex lens the object should be placed..................

Answer 1

To obtain an image for the same size as that of an object with the help of a convex lens the object should be placed ............

The question is invalid.

An object placed at any position in front of the convex mirror would always be diminished.

Answer 2

the object should placed at centre of curvature i.e at 2F1



this is correct answer