Non-degree students can enroll in classes for a master's program, such as physics, to build a strong academic background for admission. Many universities offer "Open University" programs that allow non-degree seeking students to take courses without formal admission. However, obtaining financial support for master's programs is challenging, with limited scholarship opportunities available. While it's not impossible to secure funding, it's generally unlikely compared to the more common financial support available for Ph.D. students. Transitioning from non-degree status to a master's program is feasible, but financial aid remains a significant hurdle.