Draw ray diagrams showing the image formation by a convex lens when an object is placed
(a) between optical centre and focus of the lens
(b) between focus and twice the focal length of the lens
(c) at twice the focal length of the lens
(d) at infinity , (e) at the focus of the lens

Explanation

(a) The enlarged, virtual and erect image forms beyond `2F_(1)` in the same side fo object when the object is placed between optical centre and focus `F_(1)` of the lens.

(b) The enlarged, real and inverted image forms beyond focus `2F_(2)` on the other side of the object when the object is placed between focus `F_(1)` and twice the focal length of the lens.

(c) The real and inverted image of equal to the size of object forms at focus `2F_(2)` on the other side of the object when the object is placed at twice the focal length of the lens.

(d) The real, inverted and highly reduced image forms at focus `F_(2)` on the other side of the object when the object is placed at infinity.

(e) The real, inverted ahd highly magnified image forms at infinity on the other side of the object when the object is placed at the focus of the lens.