Is it possible to see a virtual image?
1) no, since virtual images do not really exist
2) no, since the rays that seem to emanate from a virtual image do not in fact emanate from the image
3) yes, since almost everything we see is virtual because most things do not themselves give off light, but only reflect light coming from some other source
4) yes, but only indirectly in the same way that if the virtual image is formed on a sheet of photographic film, one could later look at the picture formed