Question

(i) Show the image formation by a convex mirror by ray diagram when the object is at infinity and
(a) at infinity
(b) in between pole of the mirror and infinity

Answer 1

(i) Image formation by a convex mirror:
(a) When the object is at infinity:
When the object is at infinity, the rays of light parallel to the principal axis fall on the convex mirror. These rays get reflected in such a way that they appear to diverge from a point behind the mirror (the focus). This forms an image at the focal point of the mirror. The image formed is virtual, erect, diminished, and located at the focus of the mirror.
(b) When the object is between the pole of the mirror and infinity:
In this case, when the object is placed at any point between the pole and infinity, the reflected rays still diverge, but they appear to come from a point behind the mirror. This forms a virtual, erect, and diminished image. The image will always appear between the focus and the pole.
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