Physics Spl

For physics (H), you must have studied maths till class 12th to take admission in DU.

Yes, you can do it. Only 50% aggregate is required in your UG course for the same.

There is only one criterion of minimum 40% marks in each subject. You don't need to worry about it.

You can go for M.Sc. in any of the above subjects. For that, you will have to take entrance test. Institutions like IITs provide admissions on the basis of IIT JAM result. Option for civil services is always there. You can take SSC CGL exams. If you have good teaching skills, you can apply for coaching institutes like ALLEN or Akash.

There are over 335 institutes from where you can pursue M.Sc. Physics. Please refer to the link provided below for a detailed list of colleges which offers this course from India. You should be able to navigate to a college of your choice using the filters on the web page. Regards. https://www.shiksha.com/science/colleges/m-sc-physics-colleges-india.

The best universities which offer a course in M.Sc. Physics are as follows:
University of Delhi, Delhi
Jawaharlal Nehru University, Delhi
Banaras Hindu University, Varanasi
Pune University, Pune
University of Hyderabad, Hyderabad
Jadavpur University, Kolkata
University of Calcutta, Kolkata
Panjab University, Punjab
Jamia Millia Islamia, Delhi
Guwahati University, Guwahati
Regards.

Class 12 syllabus is quite different from that of class 11. However, basics remain the same, and class 11 is all about the basics. So, you should brush up on the topics you missed in class 11, if you feel they are important for your studies in class 12. You should not face any problems in class 12, if your base for both the subjects are strong. Some chapters can be skipped, if they do not form the foundation for both the subjects in class 12. Regards.