Rutherford and Bohr atomic models, radioactivity, and nuclear fission/fusion.
Once you know the basics, use S.L. Arora to practice derivations and numerical variations. Write down formula sheets for quick revision. Solve Previous Year Questions (PYQs) sl arora physics class 12 pdf free
Work through the solved examples provided in the book before attempting the exercise questions. Rutherford and Bohr atomic models
Note: Some editions also include a section on Communication Systems (as per older syllabus). sl arora physics class 12 pdf free