SSC CGL Physics · Free notes
Modern Physics: SSC CGL Physics
Modern Physics has 13 questions in the SSC CGL Tier I bank: six from the 2023 shifts and seven from the 2025 shifts, and none from the 2024 shifts. The 2025 questions were mostly on radioactive decay; the 2023 ones paired physicists with their discoveries. One page gives the decay table and the names.
The handout has every subtopic, worked example, formula and trap with answers shown. The formula sheet is the chapter’s formulas and traps alone, on one page.
Subtopic notes
Formula & revision sheet
0 formulas · 2 reference tables · 2 gotchas across all subtopics — the exam-eve cheat-sheet
Formula & revision sheet
0 formulas · 2 reference tables · 2 gotchas across all subtopics — the exam-eve cheat-sheet
Reference tables (2)
Radioactive decay4 rows
Watch out for (2)
- Beta-plus lowers Z→ Radioactive decay
- Intensity changes the count, not the energy→ Quantum ideas and the physicists
PYQ weightage by concept
2 concepts · 13 PYQs — where the marks actually sit, so you know what to drill first
PYQ weightage by concept
2 concepts · 13 PYQs — where the marks actually sit, so you know what to drill first
| Concept | PYQs | Share |
|---|---|---|
| Quantum ideas and the physicists | 7 | 54% |
| Radioactive decay | 6 | 46% |
Test yourself on a real paper
Sit a past SSC CGL paper, timed and marked the way the exam marks it. You see your score and every answer the moment you finish. Free to start.