It depends on the mount, what make/model was your dad's camera?
I general,
Sony NEX and micro-four-thirds cameras will work with most vintage lenses (but not all)
Canon will work with a lot of vintage lenses
Nikon generally won't work unless the vintage lens was designed for fitting a Nikon camera
I suspect the Tele-Raynox 500 mm is the f/8 (might say 1:8 on the lens) and is probably m42 mount (it screws into the camera, it doesn't twist-and-lock) and looks like
this. Or it might be a T2 mount that can be swapped to suit the camera.
The Hansa 200mm, is probably the Hansa Telephoto 200mm f/4.5 (see
here) and again, probably in an M42 mount or T mount. Hansa is a rebadge of a lens made by someone else, I can find at least two variations on this lens.
I suspect both lenses would be usable with a modern camera (probably either a Sony NEX or a Canon DSLR) but they might not be the easiest lenses to use for a beginner. The 500 is a very long telephoto that could be used as a wildlife lens, but it's quite a slow lens and needs very good light to get results. The 200mm is a long telephoto, perhaps a bit long for portraits but very usable for picking out scenes within landscapes.
Both probably have more emotional value than either sale value or practical value. Unless you develop into someone that likes shooting vintage camera lenses because they find it fun to put the life/use back into them. Like me
Edit:
Because someone will no doubt take offence. The problem with Nikon is the register distance, there's too much air between the back of the mount (where the lens goes) and the sensor. Canon and NEX (and micro-four thirds) have less of a gap, and less of a gap than most of the older film cameras. Adding distance isn't much of a problem, but taking it away (for a Nikon) is. So Nikon adapters for a lot of old camera lens types (for m42 for example) need a correction optic. To get a decent correction adapter costs money, because cheap glass (used in the most affordable adapters) introduces image problems.
But, if the lenses are T2 mount, then you can get a proper adapter for Nikon because the T2 adapter allows for a shortening of the distance.