WBBSE Madhyamik Supplementary 2026 Physical Science exam is on July 4, 2026 — Light, Current Electricity, Acids/Bases/Salts, and Mole Concept are the highest-weightage chapters, together carrying over 55% of the 90-mark written paper based on 2024–25 question paper trends.
Students appearing in the Madhyamik Supplementary exam have limited time for revision. Physical Science is a 90-mark written paper that covers both Physics and Chemistry. Knowing which chapters carry the most marks lets you focus preparation where it counts. This guide covers expected chapter-wise marks, the most-tested topics within each chapter, and a day-wise last-minute revision plan.
- Supplementary exam date: July 4, 2026.
- Total written marks: 90; including practical/internal assessment the subject is out of 100.
- Light is the highest-scoring Physics chapter, expected to carry 15–18 marks based on 2024–25 Madhyamik paper trends.
- Current Electricity carries an expected 12–15 marks, with numericals on Ohm’s Law and circuit problems.
- In Chemistry, Acids, Bases and Salts and Mole Concept together contribute an expected 18–22 marks.
- All chapter weightages are estimated based on 2024–25 Madhyamik question paper trends and may vary in the actual exam.
| Direct Link — WBBSE Official Website (Official) |
| wbbse.wb.gov.in |
Physical Science Exam Pattern 2026
The Madhyamik Physical Science written paper is 90 marks with a duration of 3 hours 15 minutes (including 15 minutes reading time). The paper covers Physics and Chemistry in roughly equal halves across four question groups. Below is the section-wise structure based on the standard WBBSE Madhyamik pattern.
| Section | Type | Marks |
|---|---|---|
| Group A | Multiple Choice Questions (1 mark each) | 15 |
| Group B | Very Short Answer (1–2 marks each) | 20 |
| Group C | Short Answer (3 marks each) | 21 |
| Group D | Long Answer and Numericals (5 marks each) | 34 |
| Total (Written) | 90 |
Group D carries 34 marks — the largest single share of the paper. Chapters with a strong numerical component such as Light, Current Electricity, and Mole Concept should be your first priority because they appear in Group D almost every year.
Physics: High-Weightage Chapters
Physics contributes approximately 44–45 marks to the paper. The table below shows expected chapter-wise marks based on 2024–25 Madhyamik question paper trends.
| Chapter | Expected Marks (2024–25 trends) | Key Topics to Revise |
|---|---|---|
| Light — Reflection and Refraction | 15–18 | Mirror formula, lens formula, magnification, total internal reflection, ray diagrams for all cases |
| Current Electricity | 12–15 | Ohm’s Law, series and parallel resistance, Kirchhoff’s laws, Fleming’s rules, electric power and heat |
| Atomic Nucleus | 8–10 | Alpha, beta, and gamma decay, nuclear fission and fusion, E = mc², mass defect |
| Sound | 5–7 | Wave properties, echo and reverberation, ultrasound applications, Doppler effect (qualitative) |
Light is the single highest-scoring chapter in Physics. Expect at least one 5-mark Group D numerical involving the mirror or lens formula. Practise all six cases of image formation for concave mirrors and the image types for convex and concave lenses — these topics appear across MCQ, short-answer, and long-answer sections.
For Current Electricity, focus on Kirchhoff’s Current and Voltage Laws, resistance in series and parallel combinations, and numericals on power dissipation and heat generated. Fleming’s Left-Hand and Right-Hand Rules appear regularly in Group A MCQ questions and are quick to revise.
Atomic Nucleus questions are mostly conceptual in the supplementary paper. Revise the equations for alpha, beta, and gamma decay, Einstein’s mass–energy equivalence formula (E = mc²), and the key differences between nuclear fission and fusion. These yield easy marks in MCQ and short-answer sections without requiring heavy numerical practice.
Chemistry: High-Weightage Chapters
Chemistry contributes approximately 44–45 marks. The chapters below appear consistently in previous Madhyamik papers and carry the highest expected marks based on 2024–25 question paper trends.
| Chapter | Expected Marks (2024–25 trends) | Key Topics to Revise |
|---|---|---|
| Acids, Bases and Salts | 10–12 | pH scale, neutralisation reactions, indicators, properties of H?SO?, HCl, HNO?, and NaOH |
| Mole Concept and Chemical Calculations | 8–10 | Molar mass, Avogadro’s number, empirical and molecular formula, stoichiometry numericals |
| Periodic Table | 7–9 | Modern Periodic Law, periodic trends (atomic radius, ionisation energy, electronegativity), s and p block elements |
| Atomic Structure | 6–8 | Bohr model, quantum numbers, electronic configuration, isotopes and isobars |
| Carbon and Compounds | 5–7 | Allotropes of carbon, covalent bonding, homologous series, common functional groups |
| Oxidation-Reduction | 4–6 | Oxidation state rules, balancing redox equations, identifying oxidising and reducing agents |
Acids, Bases and Salts is the most-tested Chemistry chapter. Expect questions on the pH scale, identification of acids and bases using indicators, and chemical equations for preparation reactions. Know the properties and key reactions of sulphuric acid, hydrochloric acid, nitric acid, and sodium hydroxide in detail — these come up in every section of the paper.
Mole Concept carries several 5-mark Group D numericals. Practise converting grams to moles, calculating empirical formulae from percentage composition, and solving stoichiometry problems using mole ratios. Writing each step clearly — stating the formula, substituting values, solving — earns full marks even when the arithmetic is straightforward.
Periodic Table questions are highly predictable. Expect short-answer questions (3 marks) on Mendeleev’s and the Modern Periodic Law, electronic configuration patterns, and the direction of periodic trends such as atomic radius and ionisation energy across periods and down groups.
Last-Minute Revision Strategy
With the supplementary exam on July 4, 2026, use this day-wise plan to cover high-weightage topics systematically in the final days of preparation.
- Day 1–2 — Light and Current Electricity: Solve at least 10 numericals using the mirror formula (1/v + 1/u = 1/f) and lens formula. Draw ray diagrams for all standard cases from memory. Practise series and parallel resistance problems and Ohm’s Law calculations for Current Electricity.
- Day 3 — Acids, Bases and Salts and Mole Concept: Write out chemical equations for key reactions (acid + base, acid + metal, acid + carbonate). Solve 5–6 mole concept numericals covering molar mass calculations and stoichiometry.
- Day 4 — Periodic Table and Atomic Nucleus: Memorise periodic trends using a summary table. Revise nuclear decay equations and key facts about fission and fusion for quick MCQ and short-answer scoring.
- Day 5 — Remaining chapters and MCQ sets: Cover Sound, Carbon and Compounds, Atomic Structure, and Oxidation-Reduction through definition lists and short notes. Solve previous-year MCQ sets from 2023, 2024, and 2025 papers.
- Final day — Formulae only: Do not start new chapters. Revise your formula sheet and practise structured step-by-step answers for Group D numericals from past papers.
| Must-Know Formula | Chapter |
|---|---|
| 1/v + 1/u = 1/f (Mirror and Lens formula) | Light |
| V = IR (Ohm’s Law); P = VI = I²R | Current Electricity |
| E = mc² (Mass–energy equivalence) | Atomic Nucleus |
| Moles = Mass ÷ Molar Mass; N = n × N_A | Mole Concept |
| pH = –log[H?] | Acids, Bases and Salts |
Students should avoid re-reading full textbook chapters at this stage. Quick revision through formula lists, chemical equation summaries, and previous-year MCQ sets yields a better return in the time available before July 4.
WBBSE Madhyamik Supplementary Physical Science 2026 FAQs
Ques. Which is the most important chapter in Physical Science for Madhyamik Supplementary 2026?
Ans. Light (Reflection and Refraction) is the highest-weightage Physics chapter, expected to carry 15–18 marks based on 2024–25 trends. In Chemistry, Acids, Bases and Salts is the most frequently tested chapter with an expected 10–12 marks.
Ques. What is the total marks for WBBSE Madhyamik Physical Science?
Ans. The written paper is 90 marks. Including practical or internal assessment (10 marks), the full subject is out of 100 marks.
Ques. Are there numericals in the Madhyamik Supplementary Physical Science exam?
Ans. Yes. Numericals are a core part of Group D (5-mark long answers). Key chapters for numericals are Light (mirror/lens formula), Current Electricity (Ohm’s Law, circuit problems), and Mole Concept (stoichiometry, molar mass calculations).
Ques. How should students prepare for Mole Concept numericals?
Ans. Practise converting grams to moles using Moles = Mass ÷ Molar Mass, and calculating the number of particles using N = n × N_A (Avogadro’s number = 6.022 × 10²³). Also practise balancing stoichiometric equations and solving empirical formula problems step by step.
Ques. When is the WBBSE Madhyamik Supplementary 2026 Physical Science exam?
Ans. The WBBSE Madhyamik Supplementary 2026 Physical Science exam is scheduled for July 4, 2026. Students should verify the final timetable on the official WBBSE website at wbbse.wb.gov.in.
Ques. Which previous year papers are most useful for Madhyamik Supplementary preparation?
Ans. Solve Madhyamik Physical Science question papers from 2023, 2024, and 2025. These show chapter-wise marks distribution, question formats across all groups (MCQ, short answer, long answer), and the level of difficulty expected in the supplementary exam.
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