For an object at infinity, a concave mirror produces an image of its focus which is real, inverted and diminished. For all rays appear to come parallel to the principal axis. As we know, the parallel rays coming from an object passes through the focus when reflected by the mirror.

When the object is at infinity the image formed by a convex mirror is?

Image formed by a convex mirror is always virtual and erect. When an object is placed at infinity, virtual image is formed at focus and the size of the image is smaller.

What is infinity in concave mirror?

For an object at infinity, a concave mirror produces an image of its focus which is real, inverted and diminished. ... Hence images formed at focus as point size. As an image is formed due to converging rays in front of the mixture, therefore it is the real image. Hence the formed image is real, inverted and diminished.