Give the position, size and nature of image formed by a concave lens when the object is placed:

(a) Anywhere between optical center and infinity.


(b) At infinity.

(a) the position, size and nature of image formed by a concave lens when the object is placed placed anywhere between optical centre and infinity, is between optical centre and focus. It is diminished, virtual and erect.

(b) the position, size and nature of image formed by a concave lens when the object is placed at infinity, is at focus. It is highly diminished, virtual and erect.


11