Bsc radiotherapy is about the radiation induced for treating cancer patients and also other diseases. It has good scope as cancer is rapidly growing disease in current era but they are highly treated by using radiation therapy. Hence it has good scope in radiotherapy.

Bpt is good career option and it also high scope in physiotherapy center/ clinic or rehabilitation specialist or researcher etc.,

Both are having high scope at it's own place but I personally feel BPT has a bit high scope.

If you want to do MD RADIOLOGY after MBBS than the scope of radiotherapy is far better than BPT.

Hope you found this information useful.

All the best