It depends on the specific program and university you are applying to. Some programs may view a B- as a low grade and it could potentially hurt your chances, while others may not place as much emphasis on grades and may look at other factors such as research experience and letters of recommendation.
Grades in Physics are definitely important, as it is a closely related field to Mathematics. However, admissions committees also take into consideration other factors such as research experience, letters of recommendation, and personal statements. A B- in Physics may not necessarily disqualify you from admission, but it is important to have a strong overall application.
Yes, it is possible to get into a good Math PhD program with a B- in Physics. As mentioned before, admissions committees look at a variety of factors and a B- in one subject may not necessarily outweigh strong performance in other areas. It is important to highlight your strengths and accomplishments in your application.
Funding for PhD programs can be competitive and a B- in Physics may affect your chances of receiving funding. However, it ultimately depends on the specific program and their criteria for awarding funding. It is important to also consider applying for external funding sources and reaching out to potential advisors for research assistantship opportunities.
Yes, you can retake the Physics course to improve your grade. However, it is important to consider if it is worth the time and effort, as it may not significantly impact your chances of admission. It may be more beneficial to focus on other aspects of your application, such as research experience and letters of recommendation.