Give different cases of image formation by a convex lens. Give ray diagram in each case.
An image is formed by a convex lens when an object is placed
(a) when the object is at infinity.
(b) when object is placed beyond 2F .
© when the object is placed at 2F.
(d) when the object is placed between F and 2F .
(e) when the object is placed at F.
(f) when the object is placed between the optical centre and focus.
