JEE Main 2025: The Joint Entrance Examination Main (JEE Main) Btech, BE paper held on the last day of the January 2025 session comprised of mathematics, physics and chemistry paper of 300 marks. The difficulty level of the morning shift, according to candidates who appeared for the test was moderate to difficult.

Among the three sections, according to Ajay Sharma, National Academic Director, engineering, Aakash Educational Services Limited, physics was the easiest, chemistry was of moderate difficulty, while mathematics was the most challenging and time-consuming due to lengthy calculations. The distribution of questions across topics in the morning session was generally balanced, though some chapters were notably absent, he added.

The JEE Main exam is held in two shifts, first from 9 am to 12 noon and the second shift between 3 pm and 6 pm. JEE Main 2025 January session exam which began on January 22 for BTech and BE papers will get over on January 30 with the BArch and BPlanning papers. Today, the last slots of BTech and BE was being held.

The JEE Main BTech January 2025 paper comprised three subjects – physics, chemistry and mathematics. All the subjects have two sections – 1 and 2. While section 1 has 20 multiple choice questions with single correct answer, section 2 has 5 numerical based questions. 

Most students found the physics section easy according to Ajay Sharma, with many questions being theoretical. The distribution of topics was balanced, with an almost equal representation from Class 11 and Class 12. Key topics such as Mechanics, Waves, and Thermodynamics were adequately covered, while Electrostatics, Optics, and Mechanics had a stronger presence. In contrast, Modern Physics and Magnetism had fewer questions.

Chemistry was rated as easy to moderate and served as a time-saver. Almost all chapters were covered, with Inorganic and Organic Chemistry dominating, while Physical Chemistry had fewer questions. Most theoretical questions were directly based on NCERT, making the section straightforward and quick to complete, allowing students to allocate more time to other sections.

The Mathematics section ranged from moderate to difficult. Questions were well-distributed across most chapters, with topics like 3D, Vectors, Binomial , Conic Sections, Matrices, and Determinants being prominent. However, Calculus had fewer questions. While the difficulty level was not excessively high, the lengthy and time-consuming nature of many questions made Mathematics the most challenging section for many students.

The paper held on the first day, January 22, has been considered moderate. Experts reviewed that the mathematics section was a bit challenging but overall the paper was balanced and could be completed within the stipulated time with proper preparation.

The JEE Main BTech, BE paper held on the second day of the January 2025 session on January 23 in two sessions was considered ‘moderate to difficult’ according to most candidates who appeared for the exam.

The JEE Main January 24 and January 28 papers were analysed as easy to moderate level and a balanced level respectively.