Question

An object is kept very far away from a convex lens and slowly brought close to it. Describe how the image formed by the lens will change.

Answer 1

(a) When the object is very far away from a convex lens, the image is real and inverted.
(b) As the object is brought closer to the lens, image becomes bigger and moves away further from the lens.
(c) When the object is very close to the lens, the image can no longer be formed on screen. However, an erect, magnified and virtual image can be seen on looking through the lens on the same side as the object.