Question

Where must the object be placed for the image formed by a converging lens to be:

(a) real, inverted and smaller than the object?
(b) real, inverted and same size as the object?
(c) real, inverted and larger than the object?
(d) virtual, upright and larger than the object?

Answer 1

For a convex lens:
(a) To form a real, inverted and smaller image than the object, the object should be beyond 2F .
(b) To form a​ real and inverted image, which is the same size as that of the object, the object should be at 2F.
(c) To form a real, inverted and larger image than the object, the object should be between F and 2F.
(d) To form a virtual, upright and larger image than the object, the object should be between F(focus) and the optical centre.