A bachelor's degree in computer science can provide a pathway to a PhD in physics or applied physics, but eligibility largely depends on the applicant's background in physics and mathematics. Prospective students should have completed relevant coursework in physics, demonstrating a solid foundation in the subject. High grades in these courses, along with a strong overall GPA, can enhance the chances of acceptance into a PhD program. Additionally, GRE scores may be required by some programs, and competitive scores can further improve admission prospects. Providing specific academic details, such as coursework and grades, is essential for receiving tailored advice on eligibility and application strategies.