The requirements for a PhD in Physics vary depending on the institution, but they typically include: 

Coursework: PhD students in Physics typically complete a set of required courses that provide a strong foundation in the field. These courses may cover topics such as classical mechanics, quantum mechanics, thermodynamics, and statistical mechanics. In addition to required courses, students may also take elective courses that allow them to specialize in a particular area of physics. 

Research: The primary focus of a PhD in Physics is research. Students work with a faculty advisor to conduct original research that contributes to the field of physics. This research is typically presented in the form of a thesis or dissertation. 

Exams: PhD students in Physics may be required to pass a series of exams to demonstrate their mastery of the field. These exams may include a comprehensive exam, a qualifying exam, or an oral exam. 

Seminars and presentations: PhD students in Physics are often required to attend seminars and conferences and present their research to their peers and faculty members. This allows students to develop their presentation and communication skills and to network with other physicists in their field. 

Teaching: Some PhD programs in Physics require students to serve as teaching assistants for undergraduate physics courses. This provides students with valuable teaching experience and helps them develop their communication and mentoring skills.