Career Paths for Mathematics and Physics

I'm just looking at the Mathematics & Physics program at University of Toronto (I think it's like Mathematical Physics, correct me if I'm wrong), I'm wondering what career paths I can choose if I take this program. Would this allow my to work in either field or just in the physics field? And would this allow me to go to grad school for either one I want, or is it restricted to one of the two fields?

If it makes any difference, here's a link to the university's program calendar: http://ift.tt/1xTSKnf

Thanks.