The National Testing Agency (NTA) has commenced the country's largest engineering entrance exam, JEE Main 2025, for the January session from January 22. The exam is being conducted in CBT (Computer-Based Test) mode across a total of 331 exam centers, with 316 centers in India and 15 centers abroad. The examination will take place in a total of 11 shifts until January 30. From January 22 to 29, the B.E./B.Tech exams will be conducted in two shifts each day, while the B.Arch entrance exam will be held in a single shift on January 30.

This year, a total of 13.95 lakh students have registered for JEE Main.

Until last year, JEE candidates had the option to attempt any 5 out of 10 questions in Part-B of the question paper. However, this time, the optional questions have been removed, and only compulsory questions are included in the paper. The question paper consists of 75 questions in total, with 25 questions each from Physics, Chemistry, and Mathematics.

Paper Analysis First Day, First Shift

As per the feedback received from students, the Chemistry and Physics papers were easy, while the Mathematics paper was lengthy. The paper had more questions from Class 12 compared to Class 11.

Chemistry: The paper had a higher weightage for Organic and Physical Chemistry. Around 30% of the questions were from Inorganic Chemistry, while Organic and Physical Chemistry contributed 35% each. Among the single-choice questions, topics like statement matching list, de Broglie wavelength, SMR, potentiometer, ray optics, and heat semiconductors were asked.

Physics: The paper covered topics such as Units & Dimensions, Basic Mathematics & Vectors, Kinematics, Work Power & Energy, Capacitance, Electromagnetic Waves & Wave Optics, Modern Physics, Fluid Mechanics, Errors in Measurement & Instruments, and Semiconductors, with one question from each. Two questions were asked from Rotational Dynamics, while three questions each were from Electricity, Heat & Thermodynamics, Geometrical Optics, Electrostatics, and Current Electricity. Overall, 50% of the questions were easy, 33% were moderate, and 17% were difficult.

Mathematics: The calculations in the Mathematics paper were lengthy, and the difficulty level ranged from moderate to hard. Around 35% of the questions were from Coordinate Geometry and Calculus, 9% from Statistics & Relations, and 6% from 3D Vectors. Changes in the pattern and structure of numerical value-based questions made the paper challenging. The paper had 40% easy, 40% moderate, and 20% difficult questions.

Paper Analysis First Day, Second Shift

In the evening shift, the Chemistry paper was easy, Physics was moderate, and Mathematics was harder and lengthier compared to the morning session. Questions covered all topics comprehensively.

Chemistry: Most of the questions were statement-based, with a higher weightage given to Organic Chemistry.

Physics: The Physics paper was relatively easy. Three questions each were asked from Work, Energy & Power, Elasticity, Heat & Thermodynamics, Electromagnetic Waves, and Optics, while two questions were from Modern Physics. Additionally, one question was included from each major topic.

Mathematics: The evening shift paper was more difficult and lengthier than the morning shift, making it time-consuming to solve.

Paper Analysis Second Day, First Shift

Physics, Chemistry, and Mathematics – Average Level

Chemistry: The difficulty level of the paper was moderate. It included six questions from Inorganic Chemistry, eight from Organic Chemistry, and nine from Physical Chemistry. The paper featured a mix of questions from all three branches.

Physics: The paper was of an average level. Two questions each were asked from Units & Dimensions, Geometrical Optics, and Modern Physics. Additionally, one question each was asked from topics such as Kinematics, Center of Mass, Elasticity, Heat & Thermodynamics, and Semiconductors.

Mathematics: The paper was relatively easy. The distribution of questions was as follows: 35% from Calculus, 32% from Algebra, 8% from Coordinate Geometry, 8% from Statistics & Relations, 12% from 3D Vectors, and 5% from Trigonometry.

Paper Analysis Second Day, Second Shift:
Physics and Chemistry – Easy; Mathematics – Moderate to Difficult

Mathematics: The paper included two questions each from Vectors and 3D Geometry. Questions were also asked from Circles, Calculus, and Differentiation. Most questions were based on mixed concepts, thoroughly testing conceptual understanding and problem-solving abilities.

Chemistry: The majority of the questions were theoretical. Compared to Physical Chemistry, Inorganic and Organic Chemistry had lesser weightage. The paper included three questions from Periodic Classification, 2-3 from Organic Chemistry, and two from the Structure of Atom.

Physics: The questions were primarily formula-based, with 60% of them coming from the Class 12 syllabus. All major topics were covered, and 3-4 questions were statement-based. Questions were asked from topics such as Optics, Electromagnetism, Diodes, Electrostatics, Thermodynamics, and Galvanometer-based circuits.

Paper Analysis Third Day, First Shift:

Physics – Easy, Chemistry – Moderate, Mathematics – Lengthy

On the third day, the Physics paper was easy, Chemistry was moderate, and Mathematics was lengthy, requiring more time for calculations.

Chemistry: The paper was of moderate difficulty. It comprised 32% questions from Inorganic Chemistry, 36% from Organic Chemistry, 28% from Physical Chemistry, and 4% were mixed questions. The paper was calculation-intensive, with many statement-based questions.

Physics: The paper was easy but took longer to solve than usual. It included three questions from Geometrical Optics, two each from Elasticity, Heat & Thermodynamics, Fluid Mechanics, and Errors in Measurement & Instruments. One question each was asked from Kinematics, Circular Motion, Work, Power & Energy, Rotational Motion, Electromagnetic Waves, and Semiconductors.

Mathematics: The paper was lengthy and time-consuming. The distribution was 40% from Calculus, 32% from Algebra, 12% from Coordinate Geometry, 4% from Statistics & Relations, and 12% from 3D Vectors. Surprisingly, no questions were asked from Trigonometry.

Paper Analysis Third Day, Second Shift:

Physics and Chemistry – Easy; Mathematics – Challenging

In this shift, Physics was the easiest, followed by Chemistry, while Mathematics was the most challenging due to lengthy calculations.

Physics: Among the three subjects, Physics was the easiest. Most of the questions were formula-based, with more focus on Class 12 topics and fewer from Class 11. Fewer questions were asked from Mechanics, Waves, and Thermodynamics, while more were from Optics and Thermomagnetism.

Chemistry: The section had straightforward and theoretical questions. Inorganic Chemistry had a higher weightage compared to Organic and Physical Chemistry. Overall, the Chemistry section was easy, allowing students to dedicate more time to other sections.

Mathematics: The difficulty level of the Mathematics paper was high. Topics such as 3D Geometry and Conic Sections had the highest weightage, with a significant number of questions from Calculus. The lengthy calculations made the section time-consuming.