JEE Main 2026 One-Day Before Exam: High-Scoring Topics You Should Not Miss

Candidates who are all-set to appear for the JEE Main exam starting from January 21, 2026. They eagerly want to know the JEE Main high-scoring topics on the last day. A final day study plan to cover the Physics, Chemistry, and Maths revision before facing the actual exam.

Don’t try to cover any new topics before the exam. Candidates should relax and revise the JEE Main important formulas to revise today.

It can help them to go through the important formulas from an exam perspective. Don’t miss carrying the printed copy of the JEE Main admit card along with the ID proof and photograph.

Live: JEE Main 2026 Session 1 Exam Live Updates 21 To 29 Jan

What To Revise One Day Before JEE Main?

Candidates should divide the last few hours to focus on the JEE Main exam tomorrow preparation. It should include JEE Main Physics, Chemistry, and Maths revision. The focus should be on working on the strong topics that can fetch marks in the JEE Main exam. Make the JEE Main final day study plan only by revising handwritten notes and relaxing before the exam. 

Also Read: JEE Main Admit Card 2026

Physics

Candidates should focus on the Modern Physics section, which carries significant weightage in the exam. 

• Modern Physics (Highest Weightage): Briefly review Bohr’s Atomic Model, Photoelectric Effect, and De Broglie wavelength. These are usually direct and high-scoring.

• Current Electricity & Electrostatics: Revise Kirchhoff’s laws, resistance colour codes, and capacitor combinations.

• Semiconductors: Ensure you remember the truth tables for Logic Gates—this is almost a guaranteed 4-mark question.

• Experimental Physics: Under the 2026 NTA pattern, topics like Vernier Callipers and Screw Gauge have seen increased weightage in Section B.

Chemistry

Revise the Organic and Inorganic important formulas in the revision. 

• Inorganic (NCERT is King): Quickly flip through Coordination Compounds (naming and hybridisation) and p-block/d-block trends.

• Organic Chemistry: Do not solve mechanisms now. Instead, glance at Named Reactions (Aldol, Cannizzaro, Reimer-Tiemann) and the acidity/basicity orders in GOC.

• Physical Chemistry: Focus on the "formula trigger." Check the Nernst Equation (Electrochemistry) and first-order rate laws (Kinetics).

Mathematics

JEE Main high-scoring topics on the last day from Mathematics include Matrices, Calculus, and Statistics topics. 

• Vector & 3D Geometry: These are highly predictable. Revise the shortest distance between lines and the scalar triple product.

• Matrices & Determinants: Focus on the properties of adjoints and Cramer’s Rule for solving linear equations.

• Calculus: Quickly review standard limits and the properties of Definite Integrals (especially the "King’s Property").

• Statistics: Revise the formula for Variance and Standard Deviation—this is a frequent, standalone high-scoring topic.

JEE Main Important Formulas To Revise Today

Candidates should go through the important formulas in Physics, Chemistry, and Maths for revision. 

• Physics: v = u + at, PV = nRT, F = kq1q2/r^2.

• Chemistry: ΔG = ΔH - TΔS, E = E0 - (0.059/n)logQ.

• Math: x = (-b ± sqrt(b^2 - 4ac)) / 2a, (a+b)^n = ∑(n r)a^(n-r)b^r.