Question

State the position and nature of the image formed by a convex lens for the following positions of the objcet:

(a) between O and F
(b) between F and 2F
(c) at 2F

Answer 1

(a) between O and F: Position of the image is on the same side as the object; nature of the image is virtual, erect and highly magnified.

(b) between F and 2F: Position of the image is beyond 2F; nature of the image is real, inverted and magnified.

(c) at 2F: Position of the image is at 2F on the opposite side of the object; nature of the image is real, inverted and of the same size as the object.

(d) beyond 2F: Position of the image is between F and 2F on the opposite side of the object. The nature of the image is real, inverted and diminished.