Modern Physics Weightage in JEE Mains: Key Topics & Preparation Strategy

If you are preparing for JEE Mains, then Modern Physics is the topic which requires comparatively less effort but yields a good result, and thus it must not be skipped. Find what is the weightage of modern physics in JEE based on the previous year analysis and the preparation strategy to use it to your advantage.

Modern Physics Weightage in JEE Mains 2026: Modern Physics has been a high-scoring section of the JEE Main Physics syllabus. Even though the JEE Main chapter-wise weightage changes every year, this unit continues to hold a good share of questions. Modern physics has a set of defined concepts involving direct formulas, and the numerical questions follow predictable formats. This makes the topic favourite among students looking to maximise their scores in the JEE Mains exam.

Unlike lengthy units such as Mechanics or Electrodynamics, the Modern Physics syllabus is limited and easier to revise. A careful analysis of the last 5 years of JEE Main question papers highlights how this topic gets a slightly tricky question from semiconductors and atomic structure.

Modern Physics Weightage in JEE Main: Trend Overview

Modern Physics typically has a 16-18% weightage. This contributes 8-12 marks for 2 to 3 questions in most JEE Main shifts. In some papers, the weightage has even gone up to 12-16 marks, especially for semiconductor devices or nuclear physics concepts.

Why Modern Physics Is High-Scoring in JEE Main?

Several reasons contribute to modern physics having a higher weightage in the JEE Mains exam syllabus. Its weightage remains consistent primarily because these topics are fundamental to real-world applications and are heavily covered in Class 12 CBSE Physics. Modern Physics is considered one of the most reliable scoring areas because:

• Theory is short 
• The formula is limited
• Trends show repetition every year
• Concepts are simpler compared to other physics sections
• Questions are mostly direct

Most Important Modern Physics Topics for JEE Main

Candidates can check the following table for the important topics that come under modern physics. Expert analysis of the JEE Mains exam helps devise the most important concepts that students cannot miss under any circumstances.

How to Prepare JEE Main Modern Physics?

• Build Conceptual Clarity: Start with the basics, understand the concepts and start identifying the topics/concepts asked in the question.
• Memorise Key Formulas and Constants: Most questions are formula-based. Make sure you remember important formulas and constant values for Planck’s constant, Electron charge, Electron and proton masses, etc
• Solve previous JEE Main papers: Attempt the JEE Main past 10 years question papers to understand how repetitive Modern Physics problems are. This will help identify the important concepts and topics under the modern physics section.
• Read the NCERTs thoroughly: It's important to study the NCERTs first. This will help in understanding the basics and the theoretical part, which remains common and relevant while solving the numericals. Additionally, many semiconductor questions are asked directly from the NCERTs.
• Practice Chapter-wise MCQs: Students must solve at least 50-70 chapter-wise questions from modern physics. Solving these many problems will help boost your confidence in the topic.

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