Your Free Guide to NCERT Class 12 Physics Book & Solutions for Top Scores
Chapter wise NCERT Books for Class 12 Physics
FAQs on Download the Latest Class 12 Physics NCERT Book PDF for 2025-26
1. What is the best strategy to score over 95% in the CBSE Class 12 Physics board exam for the 2025-26 session?
To score over 95% in the CBSE Class 12 Physics exam, a systematic approach is crucial. Students should focus on the following points:
Master NCERT First: The NCERT textbook is the foundation. Thoroughly understand every concept, solved example, and exercise question.
Prioritise High-Weightage Topics: Focus on units like Electromagnetism and Optics, which traditionally carry significant marks.
Practice Derivations: Write down and practise all important derivations until you can recall them logically, as they are frequently asked in 5-mark questions.
Solve Numericals Daily: Dedicate time every day to solving numerical problems from various topics to build speed and accuracy.
Analyse Past Papers: Solve at least the last 5-7 years of Previous Year Question Papers (PYQPs) to understand the exam pattern and recurring question types.
2. Which topics hold the most weightage in the Class 12 Physics syllabus for the 2025-26 board exam?
As per the latest CBSE syllabus trends for 2025-26, the marking scheme typically gives higher weightage to certain units. While the exact distribution can vary slightly, students should pay special attention to:
Unit I & II (Electrostatics and Current Electricity): These units are fundamental and packed with important derivations and numericals.
Unit III & IV (Magnetic Effects of Current and Magnetism, EMI and AC): This block is conceptually rich and a source of many 3-mark and 5-mark questions.
Unit VI (Optics): Comprising Ray Optics and Wave Optics, this is a very high-scoring unit with guaranteed questions on diagrams, derivations, and phenomena.
Unit VII & VIII (Dual Nature of Radiation and Matter, Atoms and Nuclei): These modern physics topics are relatively easier to score in and have a significant weightage.
3. How should I prepare for the different types of questions (2, 3, and 5 marks) in the Class 12 Physics exam?
Preparing for different question types requires a targeted approach:
2-Mark Questions: These are usually definition-based, short conceptual questions, or simple numericals. Focus on precise definitions, principles (like Huygens' principle), and direct formula application.
3-Mark Questions: These often involve short derivations, explaining a phenomenon with a diagram (e.g., working of a transformer), or a multi-part numerical. Practise drawing neat, labelled diagrams and breaking down problems into steps.
5-Mark Questions: These are typically long derivations (e.g., lens maker's formula), detailed explanations of devices (like a cyclotron), or complex numericals. For these, practise writing in a structured format with clear steps, diagrams, and concluding statements.
4. Are the questions in the NCERT textbook sufficient for CBSE Class 12 Physics board preparation?
The NCERT textbook is absolutely essential and forms the backbone of your preparation. A majority of the board exam questions are directly or indirectly based on the concepts, examples, and exercises within it. However, to aim for a 95%+ score, it is highly recommended to supplement NCERT with:
Solving NCERT Exemplar problems, which contain higher-order thinking (HOTS) questions.
Practising questions from CBSE-issued sample papers and previous years' question papers to get accustomed to the board's questioning style and time management.
5. Why are derivation-based questions considered so important in the Class 12 Physics exam, and what is the best way to master them?
Derivations are important because they test your fundamental understanding of physical laws and principles, not just your ability to memorise a formula. They demonstrate your logical reasoning and step-by-step thought process, which is why they often constitute the high-scoring 5-mark questions.
To master them:
Understand, Don't Memorise: Focus on the core principle behind each step of the derivation.
Practise by Writing: Actively write out each derivation multiple times without looking at the source.
Visualise with Diagrams: Always draw the accompanying diagram, as it clarifies the context and fetches marks.
Create a Derivation List: Maintain a separate notebook for all important chapter-wise derivations for quick revision.
6. How can I effectively use previous years' questions to find important questions for the upcoming board exam?
Analysing previous years' question papers (PYQPs) is a smart way to identify important questions. Look for:
Recurring Topics: Notice which topics, like the photoelectric effect, Bohr's model, Gauss's law applications, or interference and diffraction, appear almost every year.
Question Patterns: Identify the standard format of questions from certain chapters. For example, a 5-mark question from Ray Optics is highly probable.
Type of Numericals: Observe the kind of numericals asked, such as those based on Kirchhoff's laws or LCR circuits, and practice similar problems.
Solving PYQPs helps you focus your energy on high-yield areas for the 2025-26 exam.
7. What are some common mistakes students make when answering important questions from Optics and Modern Physics?
Students often lose marks in these high-weightage units due to common errors:
In Optics: Forgetting to draw arrowheads in ray diagrams, mixing up sign conventions, or failing to state the assumptions made in derivations like the lens maker's formula.
In Modern Physics: Confusing the concepts of nuclear fission and fusion, incorrect plotting of graphs (like the photoelectric effect graph), or making calculation errors with powers of 10.
Being aware of these frequent mistakes is crucial for maximising your score.
8. Beyond solving problems, how can I develop the skills needed to tackle HOTS (High Order Thinking Skills) questions in Physics?
HOTS questions test your application and analytical abilities, not just knowledge. To develop these skills:
Focus on the 'Why': For every concept, ask yourself 'why' it works that way. For instance, 'Why does a capacitor block DC but allow AC?'
Connect Concepts: Try to link concepts from different chapters. For example, how principles of electromagnetism are applied in an AC generator.
Solve Conceptual Problems: Practise questions from the NCERT Exemplar and other reference books that are application-based rather than direct formula substitutions.
Analyse Real-World Applications: Think about how concepts like total internal reflection are used in optical fibres. This strengthens your applicative thinking.
