IIT JEE Subjects: What You Need to Know to Crack the Exam

When you’re preparing for the IIT JEE, India’s toughest engineering entrance exam that determines admission to the Indian Institutes of Technology. Also known as Joint Entrance Examination, it’s not just about studying hard—it’s about studying the right subjects the right way. The exam breaks down into two parts: JEE Main and JEE Advanced. Both test the same core subjects, but Advanced is sharper, deeper, and picks only the top 20,000 candidates from Main. If you’re serious about getting into an IIT, you can’t afford to treat all three subjects equally.

The three pillars are Physics, the science of how things move, energy flows, and forces shape the world, Chemistry, the study of matter, reactions, and the building blocks of everything around us, and Mathematics, the language of logic, patterns, and problem-solving that underpins every engineering discipline. Physics isn’t just formulas—it’s about visualizing problems. Chemistry isn’t just memorizing reactions—it’s understanding why they happen. Math isn’t just solving equations—it’s training your brain to think step-by-step under pressure. These aren’t separate topics. They’re connected. A mechanics problem in Physics often needs Calculus from Math. A stoichiometry question in Chemistry uses ratios from Algebra. You don’t master them in isolation—you master them together.

What gets tested changes slightly every year, but the core never does. In Physics, focus on Mechanics, Electromagnetism, and Modern Physics—they make up nearly 60% of the paper. In Chemistry, Organic reactions and Chemical Bonding are non-negotiable. In Math, Calculus, Coordinate Geometry, and Algebra dominate the weightage. You’ll see posts here about how many hours to practice, which IIT is hardest to get into, and whether you even need to be good at math to code—because the truth is, if you can’t handle the math in JEE, coding won’t be your biggest problem. The real challenge is building stamina. You’re not just learning concepts—you’re training to solve 90 difficult problems in 3 hours, with no room for hesitation.

Some students think coaching is the only way. Others think self-study is enough. The truth? It’s both. Coaching gives you structure. Books give you depth. Mock tests show you where you’re weak. And practice? That’s what turns knowledge into speed. You’ll find posts here that break down exactly how many IIT seats are available, what cutoffs look like, and which cities are best for focused prep. But none of that matters if you don’t know what to study, when to study it, and how to fix your mistakes before the real exam.

This collection doesn’t give you shortcuts. It gives you clarity. You’ll see real data on JEE cutoffs, advice on balancing subjects, and insights from students who made it through. Whether you’re just starting out or stuck in a plateau, you’ll find something that clicks. The path to an IIT isn’t about being the smartest—it’s about being the most consistent. And that starts with knowing exactly what the subjects demand—and how to meet them.