• Home
  • How to Score 100 in ...

How to Score 100 in Physics Class 12 CBSE: Tips for Theory & Practical

Author : Tanya Kaushal

Updated On : September 14, 2023


Reader's Digest: Do you want to score 100 in Physics Class 12 CBSE? Read this blog for proven preparation tips, answer writing tips, do's and don'ts in Physics practicals & more!

Physics, often considered a difficult subject, is more about understanding logic than rote memorization. While it's true that physics can be challenging, it is not all about equations and formulae.

It's a subject deeply rooted in logic, and to score a perfect 100 in your 12th-grade CBSE physics exam, you must shift your approach from mere memorization to a deeper grasp of the subject. 

Before we dive into the specifics, let's break down the score distribution: Your physics paper is worth 100 marks, with 70 dedicated to theory and the remaining 30 for practical. 

Here are the points to be discussed in this blog to guide you towards achieving that perfect score:

  • Best Strategy to Score 100 in Physics Class 12 CBSE: We'll explore the strategies and techniques to help you effectively approach the question paper.
  • How to Score Good Marks in Physics Class 12 CBSE [Theory]: Understanding the theory behind the concepts is crucial. We'll discuss how to study and prepare for the theoretical aspects of Physics.
  • How to Score Good Marks in Physics Class 12 CBSE [Practical]: Physics practical exams often make students nervous. We'll provide insights on how to excel in the practical component and secure those additional marks.

How to Attempt Question Paper to Score 100 in Physics Class 12 CBSE?

To score 100 in the Physics Class 12 CBSE exam, it's crucial to approach the question paper systematically and strategically. Here's the correct sequence to attempt the paper:

Section A (MCQs - 1 Mark Each):

  • Begin with Section A since these questions are relatively quick to answer.
  • Read each question carefully.
  • Answer the MCQs confidently based on your knowledge.

Section B (Short Answer Questions - 2 Marks Each):

  • Move on to Section B once you've completed Section A.
  • Read each question in Section B thoroughly.
  • Start with the questions you are most confident about.
  • Answer the questions concisely and to the point.
  • Keep your answers well-structured and organized.

cuet online coaching

cuet online coaching

Section C (Short Answer Questions - 3 Marks Each):

  • After completing Section B, proceed to Section C.
  • Carefully read each question and understand what is being asked.
  • Begin with the questions you find most comfortable.
  • Provide clear explanations and include relevant diagrams if required.
  • Use appropriate scientific terminology.

Section D (Long Answer Questions - 5 Marks Each):

  • Once you finish Section C, move on to Section D.
  • Take your time to read the questions carefully.
  • Start with the long questions you are most confident about.
  • Present your answers in a structured and organized manner.
  • Include diagrams, equations, and relevant examples where necessary.
  • Ensure you answer all parts of the question.

Section E (Case Study Based Questions - 4 Marks Each):

  • Finally, attempt Section E.
  • Read the case study and questions associated with it carefully.
  • Analyze the case study thoroughly before answering.
  • Structure your responses logically, addressing all parts of the questions.
  • Incorporate relevant concepts and principles from the case study.

Explore Further: CBSE Syllabus for Class 12 Chemistry

How to Score 100 in Physics Class 12 CBSE?

To score well in the CBSE Class 12 Physics exam, focusing on chapters and topics according to the chapter-wise marking scheme is essential. Here's a detailed strategy table to help you allocate your study time effectively.

How to Score 70 in Physics Class 12 CBSE [Theory]?

Scoring a perfect 70 in Physics, a subject that seamlessly intertwines the abstract with the tangible, may seem daunting for many CBSE Class 12 students.

However, with a methodical and strategic approach, this aspiration is not just a dream but a tangible goal. Here's a detailed guide to help you embark on this ambitious journey:

Finish Each Chapter Thoroughly:

  • In-depth Understanding: Ensure that you've comprehended every concept in detail. This doesn't mean just reading through the text but actively engaging with it — questioning, understanding, and revising.
  • Practice Numericals: Physics has numerous numerical problems. Regular practice can help in understanding underlying principles and applications better.
  • Make Notes: As you proceed with each chapter, jot down critical points, formulas, and concepts in your own words. This exercise not only aids memory but also helps in quick revisions.

You Must Know Important and Unimportant Topics:

  • Chapter Weightage: As discussed previously, knowing the chapter-wise marking scheme can be an asset. Focus more on chapters with higher weightage.
  • Sub-topic Importance: Even within chapters, not all topics carry the same importance. Teachers, guidebooks, and online resources can provide insights into which sub-topics are often asked in exams.
  • Avoid Overlooking 'Unimportant' Topics: While you should focus on important topics, don't completely ignore the so-called 'unimportant' ones. A holistic understanding ensures you're prepared for any surprises in the exam.

Read More - How to Score 100 in Biology Class 12 CBSE

Assertion-Reason/Case Study:

  • Understand the Format: Assertion-reason and case studies test the depth of your understanding. You need to be able to apply theoretical knowledge to practical scenarios.
  • Practice Regularly: Unlike straightforward questions, these require a mix of conceptual clarity and application. Regular practice can help you get familiar with the kind of logic and linkage required.
  • Use Supplementary Material: Sometimes, the NCERT textbook might not be enough for these questions. Rely on supplementary materials or reference books for additional practice for assertion-reason and case study-based questions.

Previous Year Questions:

  • Trend Analysis: Going through previous years' question papers will give you an idea of the pattern of questions, their difficulty level, and the trend of important topics.
  • Timed Practice: Attempt these papers in a simulated exam environment. This helps in time management and prepares you for the pressure of the exam.
  • Evaluate Thoroughly: After attempting the paper, review your answers. Understand where you went wrong and rectify those concepts. Over time, you'll see patterns in your mistakes, which you can work on.
  • Revise from Mistakes: Often, our mistakes teach us more than our successes. If you make an error in a particular concept or formula, revisit the chapter, understand the concept again, and practice more problems related to it.

Click & Explore: CBSE Class 12 Chemistry Reference Books

How to Score Good Marks in Physics Class 12 CBSE [Practical]?

Scoring well in the Physics Class 12 CBSE practical exam requires thorough preparation and attention to detail. Here's a table outlining the do's and don'ts to help you achieve a perfect score:

Do's Don'ts
1. Understand the Experiment: Fully understand the theory behind each experiment in your syllabus. 1. Don't Rush: Avoid rushing through the experiments or attempting them without proper understanding.
2. Practice Regularly: Practice the experiments multiple times to gain confidence and accuracy. 2. Don't Skip Steps: Follow the prescribed procedure for each experiment meticulously; skipping steps can lead to errors.
3. Use Accurate Instruments: Ensure your instruments are calibrated and in good working condition. 3. Don't Use Faulty Equipment: Do not use damaged or malfunctioning instruments, as they can affect the results.
4. Take Precise Measurements: Pay attention to precisely measuring quantities and record them accurately. 4. Don't Guess: Avoid guessing or estimating measurements; always use appropriate measuring tools.
5. Label Diagrams Clearly: When drawing diagrams, label all components and show the direction of current, if applicable. 5. Don't Miss Labels: Do not forget to label the diagrams or miss essential details.
6. Record Observations: Maintain a well-organized observation table, recording observations systematically. 6. Don't Fabricate Data: Never makeup observations or results; it can lead to penalties.
7. Perform Calculations Carefully: If calculations are required, perform them accurately, showing all steps. 7. Don't Copy Others: Avoid copying other students' work; it can lead to plagiarism charges.
8. Discuss Theory and Observations: In the Viva Voce section, be ready to explain the theory and observations confidently. 8. Don't Memorize: Don't try to memorize answers; understand the concepts to answer questions effectively.
9. Revise Lab Manual: Review your lab manual thoroughly to ensure you know the theory behind each experiment. 9. Don't Overlook Pre-Lab Questions: Don't ignore pre-lab questions; they are often crucial for understanding the experiment.
10. Be Neat and Organized: Keep your lab records and practical files neat, organized, and well-structured. 10. Don't Procrastinate: Avoid leaving preparations to the last minute; plan your time wisely.
11. Seek Clarifications: If you have doubts, don't hesitate to ask your teacher for clarification before the exam. 11. Don't Panic: Stay calm during the exam, and don't let anxiety affect your performance.
12. Practice Viva Voce: Practice answering potential Viva Voce questions with a friend or teacher. 12. Don't Argue with the Examiner: Be respectful if the examiner disagrees with your answers during the Viva Voce. Explain your reasoning calmly.
13. Time Management: Manage your time effectively during the exam to complete all tasks within the allotted time. 13. Don't Write Irrelevant Information: In your records, avoid adding irrelevant information that does not pertain to the experiment.

Read On: CBSE Class 12 Chemistry Tips & Tricks

How to Score 100 in Physics Class 12 CBSE By Prioritizing Chapters?

You must divide the Physics syllabus topics based on the following:

  1. High Priority: These are chapters with major weightage. It's essential to have a thorough understanding of these chapters to secure good marks. They account for more than 70% of the marks.
  2. Medium Priority: While these chapters carry fewer marks than the high-priority ones, they still hold significant weightage. It's beneficial to grasp the concepts of these chapters as they can be the deciding factor in boosting your percentage.
  3. Topics like Electromagnetic Waves and Electronic Devices haven't been explicitly marked, but they might have a lower weightage. It's still advisable to go through them to ensure you don't miss out on any potential marks.

Here's a detailed strategy for preparing for the CBSE Class 12 Physics exam according to the chapter-wise marking scheme, focusing on chapters with higher weightage:

Unit Name Chapter Name Marks Topics to Focus On
Electrostatics Electric Charges and Fields 16 Coulomb's law, Electric field, Electric potential, Gauss's law.
Electrostatic Potential and Capacitance Capacitors and capacitance, Dielectrics.
Current Electricity Current Electricity 17 Ohm's law, Kirchhoff's law, Electrical resistance, EMF, and Potentiometer.
Magnetic Effects of Current and Magnetism Moving Charges and Magnetism Biot-Savart law, Ampere's law, Magnetic field due to a current-carrying conductor.
Magnetism and Matter Magnetization, Magnetic properties of materials.
Electromagnetic Induction and Alternating Currents Electromagnetic Induction 18 Faraday's laws of electromagnetic induction, Self-inductance, Mutual inductance.
Alternating Currents AC circuits, Resonance, Power in AC circuits.
Electromagnetic Waves Electromagnetic spectrum, Electromagnetic waves, Properties of EM waves.
Optics Ray Optics and Optical Instruments Reflection, Refraction, Lenses, Optical Instruments.
Wave Optics Interference, Diffraction, Polarization.
Dual Nature of Radiation and Matter Dual Nature of Radiation and Matter 12 Photoelectric effect, De Broglie wavelength, Davisson-Germer experiment.
Atoms and Nuclei Atoms Bohr's model, Atomic spectra, Electronic transitions.
Nuclei Nuclear properties, Radioactivity, Nuclear reactions.
Electronic Devices Semiconductor Electronics: Materials, Devices and Simple Circuits 7 Semiconductor diodes, Transistors, Logic gates, Amplifiers.

Get Started: How to Score 100 in Chemistry Class 12 CBSE


In conclusion, achieving a perfect score of 100 in Physics Class 12 CBSE is an attainable goal with the right strategies and dedication. Here are the key takeaways from this comprehensive guide:

  • Understand that Physics is about logic and understanding, not just memorization.
  • Approach the question paper systematically, starting with MCQs and progressing to longer questions.
  • Prioritize chapters based on their weightage to allocate your study time effectively.
  • Dive deep into each chapter, practice numerical problems, and make concise notes.
  • Don't overlook assertion-reason and case study questions; practice regularly.
  • Review previous year's question papers, learn from mistakes, and manage your time wisely during the exam.
  • For practicals, focus on understanding experiments, using accurate instruments, and maintaining detailed records.
  • Prioritize high and medium-weightage chapters to secure maximum marks.

cuet mock test

cuet mock test

Get CUET Study Materials 2024 [Free]

Fill your details

Frequently Asked Questions

Is it possible to score a perfect 100 in Physics Class 12 CBSE exam?

What is the best way to start attempting the Physics question paper?

How should I prioritize chapters while studying for the exam?

How can I excel in the practical component of Physics Class 12 CBSE?

What should I do if I come across assertion-reason or case study questions?

How can I manage my time effectively during the Physics exam?

Should I focus only on high-priority chapters, or should I study medium-priority ones too?


Toprankers, launched in 2016, is India’s most preferred digital counselling & preparation platform for careers beyond engineering & medicine. We envision to build awareness and increase the success rate for lucrative career options after 12th. We offer best learning practices and end-to-end support to every student preparing for management, humanities, law, judiciary & design entrances.


: support@toprankers.com


: +91-7676564400

Social Channels

App Badge

Chat to Toprankers Team