Yes, it is possible to apply for Physics grad school without having a Physics major. Many universities and colleges offer a bridge program or pre-requisite courses for students with non-Physics majors who are interested in pursuing a graduate degree in Physics. However, it is important to have a strong foundation in math and science courses to be a competitive applicant.
The requirements may vary depending on the university, but generally, you will need to have completed certain math and science courses such as calculus, physics, and chemistry. You may also need to take the GRE (Graduate Record Examination) and have letters of recommendation from professors or employers.
Having a Physics major may give you an advantage, but it is not the only factor that admissions committees consider. They also look at your overall academic performance, GRE scores, letters of recommendation, and research experience. If you have a strong background in math and science courses and can demonstrate your passion for Physics through research or other activities, not having a Physics major should not significantly affect your chances.
Switching to a Physics major may help you build a stronger foundation in Physics and increase your chances of getting accepted into a Physics grad school. However, it is not necessary to switch majors if you are already in your final year of undergraduate studies. Instead, you can take additional Physics courses or participate in research to demonstrate your interest and aptitude in the field.
Some tips for applying to Physics grad school without a Physics major include taking additional math and science courses, participating in research projects, and getting strong letters of recommendation from professors in related fields. It is also important to showcase your passion for Physics and explain why you are interested in pursuing a graduate degree in the field, despite not having a Physics major.