So I've decided to switch my major from engineering to physics. I finally got courage to man up and do what I want and I'm super excited. However, I currently do research in the BME department with a professor who is the top in his field. The research is more biophysics/applied physics type stuff, and I was wondering if I should be looking to join a more physics based lab because I want to apply to physics grad school. Dos it matter in which department I do research in as an undergrad? I don't want to leave because I've put in so much time already and the professors recommendation would be very good.