The image of an object formed by a plane mirror is

If an object is placed at the focus of a concave mirror, its image is

Which one of the following is not true about the image formed by a plane mirror?

Which type of image of an object is formed by eye lens of the retina?

The image we see in plane mirror is

An object is placed between infinity and the pole (P) of a convex mirror. The position of the image is