Electricity is the single highest-weightage chapter in CET Delhi Polytechnic 2026 Physics, contributing 25–30% of Physics marks — followed by Light (Reflection and Refraction) and Motion at roughly 20% each, together covering nearly 65% of the Physics section.
CET Delhi Polytechnic 2026 is scheduled for June 28, 2026, and Physics is one of three core subjects in the 150-question entrance paper. The Physics syllabus draws entirely from NCERT Class 9 and Class 10 textbooks. Knowing the chapter-wise weightage lets you target the highest-scoring topics first and build a focused revision plan in the weeks remaining.
- Physics has approximately 40 questions out of 150 in the CET Delhi Polytechnic 2026 paper.
- Electricity (Class 10) is the top-priority chapter with 10–12 expected questions based on previous-year trends.
- Light – Reflection and Refraction follows with around 7–8 expected questions.
- Class 9 chapters — Motion, Force and Laws of Motion, Sound, Work-Energy-Power — together contribute roughly 35–40% of Physics marks.
- The exam uses a +4 for correct and ?1 for incorrect marking scheme — attempt questions only when confident.
- No Class 11 or Class 12 Physics content is tested.
| Direct Link – CET Delhi Polytechnic 2026 Official Website (Official) | tte.delhi.gov.in |
CET Delhi Polytechnic 2026 Physics: Exam Pattern Overview
CET Delhi Polytechnic 2026 is an offline, OMR-based multiple-choice exam of 150 questions conducted by the Directorate of Training and Technical Education (DTTE), Delhi. Physics accounts for approximately 40 of those questions and the syllabus is based entirely on NCERT Class 9 and Class 10 books.
| Parameter | Details |
|---|---|
| Exam Date | June 28, 2026 |
| Conducting Body | DTTE, Delhi |
| Total Questions | 150 |
| Physics Questions | ~40 |
| Exam Duration | 150 minutes |
| Marking Scheme | +4 correct; ?1 incorrect |
| Physics Syllabus | NCERT Class 9 and Class 10 |
| Mode | Offline (OMR sheet) |
CET Delhi Polytechnic 2026 Physics: Chapter-Wise Weightage
The expected question distribution below is based on previous-year CET Delhi Polytechnic paper trends. Class 10 chapters account for a larger share, but Class 9 chapters are numerous and collectively significant.
| Chapter | Class | Expected Questions | Approx. Weightage |
|---|---|---|---|
| Electricity | Class 10 | 10–12 | 25–30% |
| Light – Reflection and Refraction | Class 10 | 7–8 | ~20% |
| Motion and Laws of Motion | Class 9 | 5–6 | 13–15% |
| Magnetic Effects of Electric Current | Class 10 | 5–6 | 13–15% |
| Sound | Class 9 | 4–5 | 10–12% |
| Work, Energy and Power | Class 9 | 2–3 | 5–7% |
| Gravitation | Class 9 | 2–3 | 5–7% |
| The Human Eye and the Colourful World | Class 10 | 1–2 | 3–5% |
| Sources of Energy | Class 10 | 1–2 | 3–5% |
Electricity, Light, and Motion together are expected to account for 55–65% of Physics marks based on previous-year trends. Secure these three chapters before allocating significant revision time to lower-weightage topics.
High-Yield Topics and Key Concepts in Physics
Within each chapter, specific sub-topics recur most often in CET Delhi Polytechnic papers. The table below lists the concepts most worth mastering:
| Chapter | High-Yield Sub-Topics |
|---|---|
| Electricity | Ohm’s Law (V = IR), series and parallel combinations of resistors, electric power (P = VI = I²R), Joule’s law of heating, domestic electric circuits and safety fuses |
| Light – Reflection and Refraction | Mirror formula (1/f = 1/v + 1/u), lens formula, magnification, refractive index, laws of refraction, total internal reflection, power of a lens (P = 1/f) |
| Motion and Laws of Motion | Three equations of motion (v = u + at; s = ut + ½at²; v² = u² + 2as), distance-time and velocity-time graphs, Newton’s three laws, momentum (p = mv), conservation of momentum |
| Magnetic Effects of Current | Oersted’s experiment, right-hand thumb rule, Fleming’s left-hand rule, electric motor principle, electromagnetic induction, Fleming’s right-hand rule, AC vs DC distinction |
| Sound | Longitudinal waves, speed of sound in different media, echo condition (minimum 17 m distance), reverberation, human hearing range (20 Hz–20,000 Hz), ultrasound and SONAR |
| Work, Energy and Power | W = Fs cos?, kinetic energy (½mv²), potential energy (mgh), conservation of mechanical energy, power = work/time, 1 kWh = 3.6 × 10? J |
| Gravitation | Universal law of gravitation, g = 9.8 m/s², variation of g with altitude and depth, weight vs mass, free-fall equations, Kepler’s three laws |
| Human Eye | Near point (25 cm), far point (infinity), myopia and hypermetropia — causes and lens correction, presbyopia, atmospheric refraction, dispersion of white light |
| Sources of Energy | Conventional vs non-conventional sources, solar cells, wind energy, hydroelectric power, nuclear fission vs fusion, limitations of fossil fuels, biogas |
Most Expected Question Types in CET Delhi Polytechnic 2026 Physics
CET Delhi Polytechnic Physics MCQs combine formula-based numericals with conceptual identification questions. These recurring patterns appear across multiple years:
- Electricity numericals: Given two of the four values (V, I, R, P), calculate the remaining. Series and parallel circuit problems are among the most repeated.
- Mirror and lens formula problems: Find image distance or magnification given object distance and focal length. Sign convention questions appear frequently.
- Kinematic equation problems: A vehicle starts from rest or decelerates — find final velocity, time, or stopping distance using one of the three equations of motion.
- Newton’s law identification: A real-life scenario is described; identify which of Newton’s three laws applies or calculate force using F = ma.
- Magnetic rule application: Identify whether Fleming’s left-hand rule, right-hand rule, or right-hand thumb rule applies to a described current-and-field arrangement.
- Conservation questions: Find final speed after a collision using conservation of momentum, or maximum height reached from conservation of energy.
- SI unit and definition MCQs: "What is the SI unit of resistance / power / force?" — straightforward marks if you maintain a short unit-and-definition list.
Preparation Tips for CET Delhi Polytechnic 2026 Physics
Use the chapter weightage data above to build a score-focused revision plan ahead of June 28, 2026:
- Start with the top three chapters. Electricity, Light, and Motion carry roughly 55–65% of Physics marks based on previous-year trends — clear these fully before spending time on lower-weightage chapters.
- Maintain a formula sheet. Write every key formula — mirror/lens formula, Ohm’s law, equations of motion, F = ma, ½mv², mgh, P = 1/f — on one page and revise it every morning in the final fortnight.
- Solve previous-year papers. At least 3–4 years of CET Delhi Polytechnic papers reveal which exact question types repeat — particularly in Electricity and Optics where numericals follow set templates.
- Do not neglect Class 9 chapters. Many students focus only on Class 10 and leave marks on the table in Motion, Sound, and Work-Energy-Power — chapters that are formula-friendly and highly predictable.
- Memorise SI units and definitions. Roughly one in five Physics questions tests a unit or textbook definition — keep a short list of units (Ohm, Watt, Newton, Joule, Pascal, Hertz) for last-week revision.
- Apply the ?1 penalty rule smartly. With +4/?1 marking, skip questions where you genuinely have no idea. But where you can eliminate two of four options, the expected value of attempting the question is positive.
CET Delhi Polytechnic 2026 Physics FAQs
Ques. Which chapter has the highest weightage in CET Delhi Polytechnic 2026 Physics?
Ans. Based on previous-year trends, Electricity (Class 10) has the highest weightage with an expected 10–12 questions out of approximately 40 in the Physics section, making it the single most important chapter to prepare.
Ques. How many questions are there in the Physics section of CET Delhi Polytechnic 2026?
Ans. The Physics section has approximately 40 questions out of a total of 150 questions in the CET Delhi Polytechnic 2026 paper.
Ques. Is there negative marking in CET Delhi Polytechnic 2026 Physics?
Ans. Yes. CET Delhi Polytechnic 2026 uses a +4 for correct answers and ?1 for incorrect answers marking scheme. Attempt a question only when you can eliminate at least two of the four options.
Ques. Does the CET Delhi Polytechnic 2026 Physics syllabus include Class 11 or Class 12 topics?
Ans. No. The CET Delhi Polytechnic 2026 Physics syllabus is based entirely on NCERT Class 9 and Class 10 textbooks. Class 11 and Class 12 content is not part of the exam.
Ques. Which Class 9 chapters are most important for CET Delhi Polytechnic 2026 Physics?
Ans. The three most important Class 9 Physics chapters are Motion and Laws of Motion, Sound, and Work-Energy-Power. Together they contribute approximately 28–34% of Physics questions based on previous-year trends.
Ques. What is the exam date for CET Delhi Polytechnic 2026?
Ans. CET Delhi Polytechnic 2026 is scheduled for June 28, 2026. Students should aim to complete chapter-wise Physics revision at least 7–10 days before the exam to leave time for mock tests and formula revision.








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