Complete Guide to NDA physics syllabus for class 12 2026

The NDA Physics syllabus for Class 12 encompasses fundamental topics including Properties of Matter, Mechanics, Heat, Electricity, Magnetism, Optics, and Modern Physics. While the core curriculum aligns with Class 11 and 12 NCERT, the UPSC emphasizes conceptual application, logical reasoning, and physical phenomena relevant to defense technologies and scientific principles.\n\n## What is the Exam?\n\nThe National Defence Academy (NDA) examination is a premier competitive exam conducted by the Union Public Service Commission (UPSC) in India. It serves as the gateway for induction into the Army, Navy, and Air Force wings of the NDA and the Indian Naval Academy Course (INAC). Physics is a critical component of the General Ability Test (GAT) paper, carrying significant weightage that determines a candidate's merit rank.\n\n## Key Highlights 2026\n\n* Exam Conducting Body: Union Public Service Commission (UPSC).\n* Exam Level: National.\n* Mode of Exam: Offline (Pen and Paper).\n* Total Physics Questions: Approximately 20–25 questions in the GAT section.\n* Marks per Correct Answer: 4 marks.\n* Negative Marking: -1.33 marks for each incorrect response.\n* Language: Bilingual (English and Hindi).\n\n## Syllabus 2026\n\nAt Exam Bhai, we have synthesized the UPSC requirements into a structured format. Physics in the NDA exam tests your understanding of the physical world around you.\n\n| Unit | Core Topics |\n| :--- | :--- |\n| Mechanics | Kinematics, Laws of Motion, Work, Energy, Power, Gravitation |\n| Properties of Matter | Elasticity, Viscosity, Surface Tension, Fluid Pressure |\n| Heat & Thermodynamics | Thermal Expansion, Calorimetry, Conduction, Convection, Radiation |\n| Electricity | Electrostatics, Current Electricity, Ohm’s Law, Circuits |\n| Magnetism | Magnetic Effect of Current, Electromagnets, Earth’s Magnetism |\n| Optics | Reflection, Refraction, Lenses, Human Eye, Optical Instruments |\n| Modern Physics | Atomic Structure, Radioactivity, Semi-conductors, X-rays |\n\n

[Image of electromagnetic spectrum] \n\n## Exam Pattern\n\nThe GAT paper is divided into two parts: English and General Knowledge. Physics falls under the General Knowledge section. To excel, we recommend that you practice high-yield physics MCQs for Defence on Exam Bhai to familiarize yourself with the question styles.\n\n| Section | Subject | Questions | Marks |\n| :--- | :--- | :--- | :--- |\n| Part A | English | 50 | 200 |\n| Part B | Physics | 25 | 100 |\n| Part B | Chemistry | 15 | 60 |\n| Part B | General Science | 10 | 40 |\n| Part B | History/Polity | 20 | 80 |\n| Part B | Geography | 20 | 80 |\n| Part B | Current Affairs | 10 | 40 |\n\n## Eligibility Criteria\n\nAccording to official notifications released by the UPSC (upsc.gov.in), candidates must meet the following criteria:\n\n* Age Limit: Candidates must be between 16.5 and 19.5 years of age.\n* Educational Qualification: For the Army wing, a 10+2 pass is sufficient. However, for the Air Force and Naval wings, Physics and Mathematics as mandatory subjects in Class 12 are strictly required.\n* Nationality: Citizen of India, subject of Nepal/Bhutan, or a Tibetan refugee who came to India before Jan 1, 1962, with the intention of permanently settling.\n\n## Application Process\n\nThe application process is entirely digital and hosted on the official UPSC portal. \n\n1. Visit the official website at upsc.gov.in.\n2. Register via the OTR (One Time Registration) platform.\n3. Fill in personal and educational details carefully.\n4. Pay the required examination fee (exempted for SC/ST candidates and sons of JCOs/NCOs/ORs).\n5. Choose your exam center and submit the final application.\n\n## Preparation Strategy\n\nOur experts at Exam Bhai suggest a three-pronged approach to conquering the Physics section:\n\n1. NCERT Mastery: The foundation of the NDA Physics syllabus is the Class 11 and 12 NCERT textbooks. Focus on the bolded definitions and summary boxes.\n2. Conceptual Application: NDA does not ask for complex derivations. Instead, it tests whether you understand why a ship floats or how an optical fiber works. Use our platform to solve topic-wise mock tests for Defence on Exam Bhai to bridge the gap between theory and application.\n3. Revision of Formulae: Create a cheat sheet for all major laws—Newton's Laws, Ohm's Law, and Snell's Law. If you struggle with time management, take full-length simulated exams for Defence on Exam Bhai to refine your speed and accuracy.\n\n## Cut-Off Trends\n\nBased on historical data published by the UPSC, the cut-off for the written examination typically fluctuates between 320 and 360 marks out of 900. While there is no sectional cut-off for Physics specifically, scoring well in the Science segment is vital to crossing the overall threshold and securing a call for the SSB interview.\n\n## Frequently Asked Questions\n\nQ1: Is Class 12 Physics enough to clear the NDA exam?\nA1: Yes, the syllabus is primarily based on the NCERT Class 11 and 12 curriculum. However, you must focus on conceptual clarity rather than rote memorization.\n\nQ2: Are there numerical problems in the NDA Physics section?\nA2: Yes, but they are generally simple, formula-based problems that test your understanding of units and basic calculations rather than high-level calculus.\n\nQ3: Is there a separate passing mark for Physics in NDA?\nA3: No, there is no sectional cut-off for the Physics subject. The aggregate marks of the GAT paper determine your performance.\n\nQ4: Which chapters are most important for Physics?\nA4: Mechanics, Optics, and Electricity consistently carry the highest weightage in the UPSC NDA examination. Focus heavily on these areas.\n\nQ5: Can a biology student crack the Physics section of NDA?\nA5: Yes, provided you have a basic grasp of high-school physics. Many students bridge this gap by consistently practicing NCERT-level problems.\n\nQ6: How does Exam Bhai help in NDA preparation?\nA6: We provide a specialized learning environment with curated study material, high-accuracy mock tests, and performance analytics tailored specifically for the competitive landscape of Indian Defence exams.