Draw ray diagrams for various following positions of the object to show the position and nature of the images :
(i) When an object is at infinity.
● Concave mirror
a) The image is formed at the focus.
b) It is real and inverted.
c) It is highly diminished.
● Convex mirror
a) The image is formed at the focus, behind the mirror.
b) It is virtual, erect and diminished.
● Convex Lens
a) The image is formed at second principal focus F2
b) It is diminished, real and inverted.
● Concave Lens
a) The image is formed at F1.
b) It is highly diminished, virtual and erect.
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