Answer:
All are correct
Explanation:
A concave spherical mirror produces both types of images real and virtual of an object.
The concave spherical mirror forms a real image when the object placed between the focus and infinity.
The concave spherical mirror forms a virtual image when the object is placed between focus and the pole of the mirror.
So, it forms real and virtual both types of images and it forms the image size is more than object size, equal to object size and less than the object image.
All the options are correct.
