Is Carnot engine, quality factor, cyclotron still part of JEE Mains 2026?

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Detailed Solution

Yes, all three of those topics—Carnot engine, quality factor, and cyclotron—are still excluded from the official JEE Main Physics syllabus. ✅

These topics were removed during the syllabus rationalization and are not part of the current curriculum you should be studying.

Details on Each Removed Topic

Carnot Engine: This topic, along with the concepts of the heat engine and refrigerator, was removed from the Thermodynamics unit.
Quality Factor (Q factor): This was removed from the Alternating Currents (AC) chapter.
Cyclotron: This particle accelerator was removed from the Magnetic Effects of Current & Magnetism unit.

What This Means for Your Preparation

You should not spend any time studying these specific topics for the JEE Main exam. The syllabus was updated to align with the newer NCERT textbooks, and your preparation should focus exclusively on the topics mentioned in the latest official syllabus PDF provided by the NTA.

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