A non-spherical shining spoon can generally be considered as a -
1) Spherical mirror
2) Parabolic mirror
3) Plane mirror
4) Lens

explain what characteristics make convex spherical mirrors applicable for store monitoring and concave spherical mirrors applicable as flashlight reflectors

A real object is located at the zero end of a meter stick. A large concave spherical mirror at the 100-cm end of the meter stick forms an image of the object at the 70.0-cm position. A small convex spherical mirror placed at the 20.0-cm position forms a final image at the 10.0-cm point. What is the radius of curvature of the convex mirror?