ISC Physics Exam Pattern and Marking Scheme: The pattern and marks distribution of the ISC Physics exam provide important information for students, which proves to be helpful in preparing for the exam. In this article, we will discuss the structure of the ISC Class 12 Physics exam, its various sections, and the type of questions in each. The exam consists of multiple-choice, short-answer, and number-based questions that test both the comprehension and calculation skills of the students. Along with this, we will also understand the marks distribution and the importance of each section, so that students can plan a better strategy for the exam.
Check: ISC Class 12 Syllabus 2024-25
ISC Class 12 Physics Question Paper Design 2024-25
The Physics question paper structure for ISC Class 12 is provided here. As per this latest design, the question paper will be divided into four sections. The distribution of questions and their marks is provided below:
| Section | No. of Questions | Marks per Question | Total Marks | Description |
| Section A | 1 | 1 mark (each sub-part) | 14 marks | One question with 14 sub-parts of 1 mark each. |
| Section B | 7 | 2 marks (each) | 14 marks | Seven questions, each carrying 2 marks. |
| Section C | 9 | 3 marks (each) | 27 marks | Nine questions, each carrying 3 marks. |
| Section D | 3 | 5 marks (each) | 15 marks | Three questions, each carrying 5 marks. |
ISC Class 12 Physics Unit-Wise Weightage 2025
Based on the questions asked in the 2025 ISC Class 12 specimen paper for Physics the below-mentioned unit-wise weightage is prepared. It is expected that the final question paper will follow a similar pattern.
| Unit | Section A | Section B | Section C | Section D | Total Marks |
| Unit 1: Electrostatics | 2 | 2 | 3 | 3 | 10 |
| Unit 2: Current Electricity | 2 | 2 | 3 | 3 | 10 |
| Unit 3: Magnetic Effects of Current and Magnetism | 2 | 2 | 3 | 3 | 10 |
| Unit 4: Electromagnetic Induction and Alternating Currents | 1 | 3 | 4 | 4 | 12 |
| Unit 5: Electromagnetic Waves | 0 | 2 | 2 | 1 | 5 |
| Unit 6: Optics | 2 | 2 | 3 | 3 | 10 |
| Unit 7: Dual Nature of Matter and Radiation | 2 | 2 | 3 | 2 | 9 |
| Unit 8: Atoms and Nuclei | 2 | 2 | 3 | 2 | 9 |
| Unit 9: Electronic Devices | 1 | 1 | 2 | 3 | 7 |
| Total | 14 | 14 | 27 | 15 | 70 |
Explanation of Weightage Distribution:
- Section A (14 Marks):
- Primarily focused on concept recall (e.g., definitions, basic laws, principles).
- All the questions are short, multiple-choice, or assertion-reason based. This section ensures that students can recall important facts and fundamental concepts from all units.
- Section B (14 Marks):
- This section requires short-answer responses where students solve problems or explain concepts in brief.
- Topics are spread across various units with some questions focused on application-based concepts (e.g., capacitors, potentiometer, electric circuits, etc.).
- Section C (27 Marks):
- This section contains long-answer questions that test both the depth of understanding and the ability to apply concepts in problem-solving. It covers multiple units and often includes derivations, calculations, and explanations.
- This section demands an understanding of core principles and their applications in various physical situations (e.g., electric fields, circuits, magnetic fields, optics, etc.).
- Section D (15 Marks):
- These are higher-order thinking questions that require detailed explanations and extensive problem-solving.
- Many questions in this section involve experimental setups, calculations, and conceptual analysis (e.g., AC circuits, magnetic fields, energy calculations, etc.).
ISC Class 12 Physics Exam Pattern 2025
Here is a typology of questions and their weightage based on the ISC Class 12 Physics Specimen Paper 2025.
| Type of Question | Question Paper Section | Marks per Question | Total Marks | Percentage of Total Marks | Description |
| Multiple Choice Questions (MCQs) | Section A | 1 mark each | 7 | 10% | Simple recall questions covering basic concepts (e.g., circuit behaviour, magnetic field, de Broglie wavelength). |
| Assertion-Reason Type Questions | Section A | 1 mark each | 2 | 3% | Evaluating understanding of principles through assertion and reasoning (e.g., telescope magnification, refractive indices). |
| Brief Answer/Conceptual Questions | Section A and Section B | 1–2 marks each | 7 | 10% | Short explanations or calculations on fundamental topics (e.g., current in wires, transformer lamination, or wavefront passing through apertures). |
| Numerical/Calculation-Based Questions | Section B and Section C | 2–3 marks each | 13 | 19% | Applying concepts to solve real-world problems (e.g., Kirchhoff’s laws, electric fields, lens focal lengths). |
| Application-Based Questions | Section B and Section C | 2–3 marks each | 10 | 14% | Using knowledge of physics in practical contexts (e.g., voltage balance, induced current in circuits, capacitors). |
| Derivations and Proofs | Section C and Section D | 3–5 marks each | 12 | 17% | Asking students to prove laws or derive formulas from fundamental principles (e.g., electric field due to a spherical shell, law of reflection, work function calculation). |
| Experimental and Conceptual Analysis | Section D | 5 marks each | 4 | 6% | Higher-level questions involving detailed experimental analysis, graph interpretation, or theoretical concepts (e.g., induced EMF, resonance in LCR circuits). |
Key Insights from the table:
- MCQs (Section A): These questions have a low weightage (10%) but test fundamental recall and knowledge.
- Assertion-Reason (Section A): A small but significant portion (3%) of the paper, focusing on critical thinking and understanding.
- Conceptual/Brief Answer Questions (Sections A and B): Make up around 20% of the paper and require clarity in explaining principles or methods.
- Numerical/Calculation-Based Questions (Sections B and C): These constitute the bulk of the paper (19%) and test the ability to apply formulas and solve problems.
- Application-Based Questions (Sections B and C): A significant focus (14%) on practical application of learned concepts.
- Derivations and Proofs (Sections C and D): Higher-order thinking questions that account for about 17%, requiring students to demonstrate the logical derivation of important physics laws.
- Experimental and Conceptual Analysis (Section D): These higher-level questions (6%) require an understanding of both experimental setups and theoretical principles, contributing to the critical analysis aspect of the exam.
This distribution indicates a balanced exam, with a focus on both conceptual understanding and application of principles in real-world contexts.
Related:
Comments
All Comments (0)
Join the conversation