A converging mirror/lens is one that causes parallel rays of light to converge at a focal point, while a diverging mirror/lens causes parallel rays of light to spread out.
The shape of a mirror/lens determines whether it is converging or diverging. A convex shape will result in a converging mirror/lens, while a concave shape will result in a diverging mirror/lens.
The focal length of a mirror/lens is determined by its shape and curvature. The more curved the mirror/lens, the shorter the focal length will be.
A real image is one that can be projected onto a screen, while a virtual image cannot be projected and only appears to be located behind the mirror/lens.
No, a mirror/lens can only have one type of property - either converging or diverging. This is determined by its shape and curvature and cannot be changed. However, a combination of different mirrors/lenses can be used to achieve both converging and diverging properties.