Table of Contents
JEE Physics important topics: Subject and coaching experts have advised the following chapters and subjects for JEE Main 2022 preparation. Students studying for the exam should pay special attention to these chapters in order to get excellent grades. Candidates will also get subject-by-subject weightings for JEE Main chapters and subjects, as well as professional tips and methods for subject-by-subject preparation.
Every year, the National Testing Agency (NTA) holds a JEE Main exam for admission to government and private institutions in India. In February, March, April, and May of 2022, JEE Main will be held four times. Examine key chapters and efficiently prepare for the exam.
How to prepare for JEE Main Physics?
- Candidates should get familiar with the various units used to represent physical quantities. Then make a list of all the units where they are likely to become confused.
- Aspirants should pay special attention to areas like semiconductor devices, electromagnetic waves, and communication systems, which are not covered in the JEE Main 2022 curriculum.
- Semiconductor devices, electromagnetic waves, communication systems, and other subjects related questions are frequently easy and uncomplicated.
- Candidates are always encouraged to undertake a little more reading since this will assist them greatly to increase their scores.
- To solve problems in JEE Mains, a complete comprehension of all that is presented in NCERT Solutions on such topics is typically adequate.
Important Topics:
1. Mechanics
- The questions in this section are either directly based on mechanical ideas or may need significant mechanical abilities, which may aid you in answering the topic. Newton’s laws of motion, laws of gravity, and rules of conservation of linear and angular momentum are all covered in JEE mechanics. All of these principles create a framework in physics, and it is anticipated that you will be able to apply them to real-world issues.
- The Laws of conservation of energy, Newton’s laws, Equation of continuity, Work energy theorem, Laws of conservation of momentum, and Bernoulli’s theorem might be used to readily solve questions in mechanics. These concepts can also be found in other chapters of Physics. As a result, these are most likely the most significant themes on which you should concentrate.
2.Electricity and magnetism:
- This subject is particularly important for both JEE Main and Advanced because of its breadth and complexity. Every year, a large number of questions from this section are asked in JEE. If you practise and study properly for this unit, you won’t have to worry about physics in JEE. Capacitance, Coulomb’s law, and its applications are likely to generate a lot of questions.
- Don’t be afraid of complex circuit difficulties; instead, focus on learning the foundations of breaking down complex electrical circuits into simpler ones. Don’t forget to practise some questions from Kirchhoff’s laws and series-parallel circuit reduction, as well as the theoretical parts of the issue. Practice multiple problems from electrostatics, motional EMF, and magnetostatics by memorizing all of the formulae.
3. Fluid mechanics and thermal physics
Fluid mechanics is the study of fluids and the forces on them. It is a subfield of classical mechanics, along with solid mechanics and dynamics (the study of motion). Fluid mechanics can be divided into fluid statics, the study of fluids at rest, and fluid dynamics, the study of fluids in motion.
Thermal physics is the study of the thermodynamic behavior of matter. It is a subfield of classical mechanics, along with fluid mechanics and solid mechanics. Thermal physics can be divided into thermodynamics, the study of energy and its transformations, and statistical mechanics, the study of the behavior of large groups of particles.
4. Oscillation and wave
In physics, oscillation is the repetitive variation, typically in time, of some measure of a quantity, as its amplitude or its kinetic energy. Wave motion is a type of oscillation. Oscillations occur not only in physics, but also in biology, chemistry, engineering, acoustics, and many other fields. Oscillations are the usual way that physical systems return to equilibrium after being disturbed from it.
The most common oscillating physical quantity is time – rhythm in music, for example. Oscillations in voltage or current create alternating current in electrical circuits. Oscillations in air pressure create sound waves. Oscillations in water create waves. Oscillations in the chemical structure of molecules create chemical waves.
Oscillation is the driving force behind virtually all forms of motion in the universe. From the oscillations of the particles in the early universe, to the oscillations of the galaxies and stars within them, to the oscillations of the atoms and molecules within those objects, to the oscillations of the cells and organs within those molecules, to the oscillations of the molecules within our own bodies, oscillation is the unifying force that creates and maintains the universe in a state of dynamic equilibrium.
5. Optics
Optics is the science of light. It is the study of the properties and behavior of light and optical systems. Optical systems include lenses, mirrors, and prisms.
The most basic property of light is its wavelength. Wavelength is the distance between two successive peaks or troughs in a wave. It is measured in units of length, such as meters or nanometers.
The color of light is determined by its wavelength. The shorter the wavelength, the more energy the light has. This is why blue light is more energetic than red light.
Light can be reflected, transmitted, or absorbed. When light is reflected, it is bounced off a surface. When light is transmitted, it passes through a surface. When light is absorbed, it is absorbed by a surface.
Reflection and transmission occur when light hits a surface at a certain angle. The angle at which light is reflected or transmitted is called the angle of incidence. The angle of reflection is the angle of incidence minus the angle of reflection. The angle of transmission is the angle of incidence minus the angle of transmission.
Refraction occurs when light passes from one medium to another. The angle of incidence is the angle at which the light hits the boundary between the two media. The angle of refraction is the angle at which the light is bent as it crosses the boundary.
The speed of light is constant in a vacuum. However, the speed of light is slower in other media. The speed of light in a given medium is determined by its wavelength and the refractive index of the medium.
Optical systems can be used to form images. A lens is a curved piece of glass or plastic that bends light. A mirror is a flat piece of metal or glass that reflects light. A prism is a triangular piece of glass that bends light.
Images can be formed by reflection or transmission. A reflected image is formed when light reflects off a surface and into our eyes. A transmitted image is formed when light passes through a surface and into our eyes.
Images can be formed by refraction. A refracted image is formed when light is bent as it passes from one medium to another.
6. Modern physics
The twentieth century has seen the development of modern physics, which has revolutionized our understanding of the fundamental nature of physical reality. The most important developments in modern physics have been the theory of relativity and quantum mechanics.
The theory of relativity was developed by Albert Einstein in the early years of the twentieth century. It is based on the principle that the laws of physics are the same for all observers, regardless of their relative motion. This principle is embodied in the famous equation E=mc2, which states that energy is equal to mass times the speed of light squared.
The theory of relativity has had a profound impact on our understanding of the universe. It has led to the development of quantum mechanics, which is the most fundamental theory of the physical universe.
Quantum mechanics was developed in the 1920s by physicists such as Werner Heisenberg, Erwin Schrödinger, and Max Born. It is based on the principle that the behavior of subatomic particles is governed by the uncertainty principle. This principle states that it is impossible to know both the position and momentum of a subatomic particle with absolute certainty.
Quantum mechanics has had a profound impact on our understanding of the universe. It has led to the development of the theory of quantum field theory, which is the most fundamental theory of the physical universe.
The theory of quantum field theory was developed in the 1950s by physicists such as Richard Feynman, Julian Schwinger, and Sin-Itiro Tomonaga. It is based on the principle that the behavior of subatomic particles is governed by the uncertainty principle. This principle states that it is impossible to know both the position and momentum of a subatomic particle with absolute certainty.
The theory of quantum field theory has had a profound impact on our understanding of the universe. It has led to the development of the standard model of particle physics, which is the most fundamental theory of the physical universe.
The standard model of particle physics is the most fundamental theory of the physical universe. It is based on the principle that the behavior of subatomic particles is governed by the uncertainty principle. This principle states that it is impossible to know both the position and momentum of a subatomic particle with absolute certainty.
The standard model of particle physics has had a profound impact on our understanding of the universe. It has led to the development of the theory of general relativity, which is the most fundamental theory of the physical universe.
IIT JEE Physics Important Topics
Physics section of JEE 2019
The physics part of JEE Main 2019 was rated as the most difficult of the three components. The questions were difficult and time-consuming, and students had to put in additional effort to solve them using their logical and reasoning abilities. The physics section was worth a total of 30 points. There were 13 questions on electromagnetic, 8 questions on mechanics, 2 questions on contemporary physics, 3 questions on optics, 3 questions on thermodynamics, 1 question on SHM, and 1 question on waves. In this paper, there were 10 simple questions, 17 intermediate questions, and 3 tough questions.
| Physics | ||
| Topics | No of Questions | Weightage of Marks |
| Electromagnetics Induction; AC | 1 | 4 |
| Solids and Fluids | 1 | 4 |
| Waves | 1 | 4 |
| Work, Power and Energy | 1 | 4 |
| Gravitation | 1 | 4 |
| Simple Harmonic Motion | 1 | 4 |
| Unit, Dimension and Vector | 1 | 4 |
| Kinematics | 1 | 4 |
| Laws of motion | 1 | 4 |
| Centre of Mass, Impulse and Momentum | 1 | 4 |
| Rotation | 1 | 4 |
| Magnetics | 2 | 8 |
| Heat and Thermodynamics | 3 | 12 |
| Current Electricity | 3 | 12 |
| Electrostatics | 3 | 12 |
| Optics | 3 | 12 |
| Modern Physics | 5 | 20 |
| Total | 30 | 120 |
Also Check
| Kinematics Formula | Laws of Motion Second Formula |
| Current Electricity PYQs | NCERT Solutions For Class 12 Physics Chapter 2 Electrostatics |
| Optics PYQs | Gravitational Force Formula |
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FAQs of JEE Physics Important Topics JEE Main And Advanced
What are the important chapters in Physics for mains?
In the context of JEE mains, the important chapters in Physics can vary slightly from year to year, but some of the consistently significant chapters include: Mechanics: Covers topics like Newton's laws of motion, rotational dynamics, and conservation of momentum. Electrodynamics: Focuses on concepts related to electric and magnetic fields, electromagnetic induction, and AC circuits. Optics: Includes topics on reflection, refraction, lenses, and optical instruments. Modern Physics: Involves discussions on topics like dual nature of matter and radiation, atomic structure, and nuclear physics.
Can you skip chapters in JEE?
Yes, you can skip chapters in JEE, but it is not recommended to skip them entirely. The JEE syllabus is extensive, and while you may not have to study each chapter in great detail, skipping entire chapters might lead to missing out on crucial questions in the exam. It's better to have a basic understanding of all topics to maximize your chances of scoring well.
Which is the toughest chapter in physics in the JEE syllabus?
The perception of the toughest chapter in physics can vary among students, as it depends on individual strengths and weaknesses. However, some candidates often find the following chapters more challenging: Electromagnetic Induction and Alternating Current: Involves complex concepts and mathematical applications. Modern Physics: Some students struggle with the abstract ideas of quantum mechanics and nuclear physics.
Which subject is the hardest in mains?
For most JEE aspirants, the subject that is often considered the hardest is Mathematics. It requires a strong grasp of concepts and extensive problem-solving skills. However, this perception can differ among students based on their aptitude and interests.
Which is the easiest chapter in physics?
Again, the perception of the easiest chapter can vary among students. However, some of the topics that students often find relatively easier include: Laws of Motion and Friction: These topics are conceptually straightforward and can be understood with real-life examples. Gravitation: Involves simple mathematical applications and is relatively intuitive.
Which chapters in physics have the highest weightage?
While the exact weightage can change from year to year, historically, the following chapters have had relatively higher weightage in JEE mains: Mechanics: This topic has consistently carried a significant number of questions. Electrodynamics: The concepts related to electric and magnetic fields have also been essential over the years. Modern Physics: Questions related to atomic and nuclear physics often have considerable weightage. Keep in mind that while focusing on high-weightage chapters is crucial, you should not neglect other topics entirely, as JEE mains aims to test your overall understanding of physics.
