What is the basic difference between a real image and a virtual image?

Real pictures are created when light rays really converge at a location after being refracted by a lens or reflecting by a mirror. When light rays seem to diverge from a point after being reflected by a mirror or refracted by a lens, virtual pictures are created.
Real pictures are those that are produced when light rays really converge at a certain location following lens refraction or mirror reflection. Due to the physical meeting of the light beams, they may be produced on a screen. Real pictures can be created after reflection from a concave mirror and after refraction by convex lenses under the right circumstances. Thus, given the right circumstances, they can be created both by reflection and via refraction.

Pictures created by light beams that appear to diverge from a point after being refracted by a lens or reflected by a mirror are referred to as virtual images. Since the light beams seem to diverge from a point but do not physically meet, they cannot be obtained on a screen. Convex and concave mirrors may reflect light to create virtual pictures (when the object is very near). A concave lens can also shape them after refraction. Thus, given the right circumstances, they can be created both through reflection and refraction.

Hence, the correct option is A.