Gravitation Weightage in JEE Main 2025
Gravitation Weightage in JEE Main 2025 is expected to be 2%. Check the detailed information about the weightage of the topic Gravitation from the JEE Main Physics Section in this article.
Gravitation Weightage in JEE Main 2025: The physics chapters occupy prime significance in the JEE Main exam. The JEE Main aspirants are required to prepare for all the subjects in a perfect manner. JEE Main 2025 aspirants must be aware of the chapter-wise weightage for each subject for effective preparation. Some topics with high weightage in the physics syllabus are Motion and Equilibrium, Mechanics, Master Forces etc. whereas chapters such as Gravitation carry a weightage of minimum 2 questions (2%) in the JEE Main 2025 Exam. Though the weightage of Gravitation may seem small, but it is often covered under the broader sections of Mechanics, and its Concepts are necessary for solving the problems related to Circular Motion, Planetary Motion, and Satellite Dynamics. Candidates can check the weightage of the Gravitation chapter of JEE Main here in the article.
Latest update: National Testing Agency has declared the JEE Main 2025 exam dates! JEE Main 2025 entrance exam will be held from January 22 to 31, 2025.
Also Read: JEE Main 2025 Exam Pattern
An Overview of Gravitation
Gravitation, as defined by Sir Isaac Newton, refers to the force of attraction between any two objects with mass. This force, which is invisible, is immensely powerful, capable of holding together galaxies and shaping the very fabric of spacetime. The strength of gravitational attraction is dependent upon the masses of the objects involved and the distance between them. For instance, consider two particles of masses m1 and m2 are positioned at a distance ‘r’ apart. If the force of attraction operating between them is F, then according to Newton’s law of gravitation, we have:
The proportionality constant G is referred to as the ‘gravitational constant’. Its value is the same for all pairs of particles in the universe. Therefore G is a ‘universal constant’. Although Newton's law of gravitation applies strictly to particles (point masses), it can be applied to extended objects as well, provided the sizes of the object are small compared to the distance between them. For instance, the moon and the earth are located far enough from each other so that, to a good approximation, we can treat both bodies as point masses and apply the law of gravitation. Spherically symmetric bodies tend to attract external particles as if their entire mass were concentrated at their centres of mass. Therefore the law of gravitation can be applied to them, irrespective of whatever their size be.
Gravitation - Key Concepts
- Newton's Law of Universal Gravitation - Every mass attracts every other mass with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between their centres.
- Geostationary and Polar Satellites - Fundamental concepts related to the orbits of satellites and their applications.
- Gravitational Field and Potential - The concept of gravitational field strength and gravitational potential energy, and their relation to work done in moving a mass in a gravitational field.
- Orbital Mechanics - The motion of planets and satellites, comprising the derivation of Kepler’s laws, and understanding of escape velocity and orbital velocity.
- Acceleration due to Gravity - Deciphering how gravity varies with altitude, depth, and latitude, as well as its value on the Earth's surface.
- Energy Considerations - Calculations comprising potential energy, kinetic energy, and total energy in gravitational fields, especially for satellite motion.
Expected Gravitation Weightage in JEE Main 2025
Check the table below to understand the weightage, number of questions, and chapters included in the Gravitation syllabus.
Chapter from Physics | Weightage | Number of questions | Total Marks | Topics in the chapter |
Gravitation | 2% | 2 | 4 |
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Also Read:Best JEE Main Coaching Institutes in India
Previous Year Gravitation Weightage in the JEE Main Exam
Candidates can check the table below to learn the previous years' weightage for the Gravitation chapter from the physics syllabus.
January & April 2024 Session | January & April 2023 Session | June & July 2022 Session | February/March & July 2021 Session | Total Questions in JEE Main 2020 | Total Questions in JEE Main 2019 |
Total -10 questions | January - 18 questions April - 21 questions | June - 14 questions July - 10 questions | February - 12 questions March - 8 questions July - 9 questions | Total -16 questions | Total - 17 questions |
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Best Books for JEE Main 2025 Physics
Physics is one of the toughest papers to crack in the JEE Main exam, as it consists of its fundamental concepts. Below mentioned are a few of the best books, which can help the candidates to score better marks in the JEE Main Physics exam.
- Understanding Physics for JEE Main and JEE Advanced by DC Pandey
- Fundamentals of Physics (Author: Halliday, Resnick, and Walker)
- Understanding Physics Electricity and Magnetism by DC Pandey
- Advanced Physics (Author: Nelkon and Parker)
- Concepts of Physics (Volume 1 and 2) by H C Verma
- Complete Physics for JEE main by I E Irodov
- Problems in General Physics by I E Irodov
- Problems in Physics (Author: AA Pinsky)
- Objective Questions on Physics- Chapterwise Solved Papers (Author: D.C. Pandey)
- Feynman Lectures on Physics (Author: Feynman, Leighton, and Sands)
Type of Gravitation Questions in JEE Main 2025
Gravitation is a key concept in Physics and appears regularly in the JEE Main exam, both directly and as well as part of multi-concept problems.
- Gravitation questions frequently asked in JEE Main involve calculations related to gravitational force, potential energy, and satellite motion.
- JEE Main gravitation questions can also assess one’s understanding of how gravitational forces affect planetary and satellite motion.
- Some JEE Main gravitation questions can integrate concepts from other topics such as Circular Motion, Work-Energy Theorem, as well as Electrostatics because of the similarities in the inverse-square law.
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FAQs
Is the JEE Main syllabus reduced?
In the reduced syllabus of the JEE Mains exam, most topics have been removed from Chemistry with 6 units completely removed and around 20 topics removed from 5 other units.
Can candidates skip chapters in the JEE Main exam?
Though it's not wise to skip any topic for the JEE Main exam, however, if one is short on time, candidates can leave low-weightage topics and invest their time on the important topics.
Can candidates get admission into NIT with 92 percentile in JEE Main?
If the candidates are seeking to get admission into the top-listed IIITs, and NITs, then it will be difficult for them with such a percentile score. However, the reserved category candidates can try their luck to get admission into the IIITs or NITs with 92 percentile marks.
Which is the hardest chapter in JEE Main Physics exam?
The hardest topics in the JEE Main Physics exam comprise Heat and Thermodynamics, Electrostatics and Magnetism, Mechanics, Modern Physics, Current Electricity, Optics, and Electromagnetic Induction.
Are previous year question papers enough for the JEE Main exam?
No. Candidates should base their JEE Main exam preparation on the previous year's question papers, mock tests and practice tests to ace the JEE Main exam with high marks.
Is it easy to score 170 in the JEE Main exam?
170 marks in the JEE Main exam equals to 98.85+ percentile, which in itself is a very good percentile. Through this, candidates can secure admission into the top premier institutes in India such as NITs, IIITs, and GFTIs.
Which topics have more weightage in the JEE Main Physics paper?
In the JEE Main Physics paper, chapters with the most weightage are Electrostatics, Optics, Current Electricity, and Mechanics whereas the moderate weightage chapters comprise Magnetism, Modern Physics, Waves, and Thermodynamics.
Is gravitation important for the JEE Main exam?
The topic of gravitation involves understanding the fundamental principles governing the attraction between masses. It holds a significant importance of about 4 - 5% in the JEE Main exam. Candidates can expect direct questions from gravitation, making it a scoring section.