What is the minimum number of rays required for locating the image formed by a concave mirror for an object? Draw a ray diagram to show the formation of a virtual image by a concave mirror.
What is the minimum number of rays required for locating the image formed by a concave mirror for an object? Draw a ray diagram to show the formation of a virtual image by a concave mirror.

A minimum of two rays are required to locate the image generated by a concave mirror. The ray diagram for the creation of a virtual image by a concave mirror is as follows: