JEE Main 2020 Physics Syllabus - Topics, Weightage, Study Notes and Preparation Tips

    Karishma Khatri Karishma Khatri
    Exams Prep Master

    JEE Main Physics section syllabus consists of topics from Class XI and XII, in the ratio as specified by NTA. The section is considered to be the toughest by some and most scoring at the same time by others. Physics contributes a total of 100 marks to the paper, it is all about clarity of concepts and logic, the complexity of the section increases further when two topics are intertwined to form a single question, a very common practice observed in JEE Main physics questions. Check JEE Main Exam Pattern 

    In order to crack the exam and secure a seat in one of the 31 NITs, 23 IIITs and 23 GFTIs, one must not leave any stone unturned. We have tried to cover a range of aspects of JEE Main Physics Syllabus in this article which includes, the topics covered, chapter-wise weightage, study notes and video lectures, reference books, difficulty level analysis and tips for question solving, score enhancement and preparation.

     

    Unit-wise Syllabus by NTA

    JEE Main Physics: Unit-wise Syllabus by NTA

    The section can be divided into 2 parts, Part A consists of theory with a weightage of 80% and Part B, which is the practical component and contributes 20%. 

    Download JEE Main 2020 Official Syllabus Released by NTA

    Section A – Theory 
    Unit NumberTopicSub-topics
    1.Physics and MeasurementPhysics, technology and society, SI units, Fundamental and derived units. Least count, accuracy and precision of measuring instruments, Errors in measurement, Dimensions of Physical quantities, dimensional analysis and its applications.
    2.KinematicsFrame of reference. Motion in a straight line: Position-time graph, speed and velocity. Uniform and non-uniform motion, average speed and instantaneous velocity Uniformly accelerated motion, velocity-time, position-time graphs, relations for uniformly accelerated motion. Scalars and Vectors, Vector addition and Subtraction, Zero Vector, Scalar and Vector products, Unit Vector, Resolution of a Vector. Relative Velocity, Motion in a plane. Projectile Motion, Uniform Circular Motion.
    3.Laws of MotionForce and Inertia, Newton’s First Law of motion; Momentum, Newton’s Second Law of motion; Impulse; Newton’s Third Law of motion. Law of conservation of linear momentum and its applications, Equilibrium of concurrent forces.

    Static and Kinetic friction, laws of friction, rolling friction. Dynamics of uniform circular motion: Centripetal force and its applications.

    4.Work, Energy, and PowerWork done by a constant force and a variable force; kinetic and potential energies, work-energy theorem, power. Potential energy of a spring, conservation of mechanical energy, conservative and non-conservative forces; Elastic and inelastic collisions in one and two dimensions.
    5.Rotational MotionCentre of mass of a two-particle system, Centre of mass of a rigid body; Basic concepts of rotational motion; moment of a force, torque, angular momentum, conservation of angular momentum and its applications; moment of inertia, radius of gyration. Values of moments of inertia for simple geometrical objects, parallel and perpendicular axes theorems and their applications. Rigid body rotation, equations of rotational motion.
    6.GravitationThe universal law of gravitation. Acceleration due to gravity and its variation with altitude and depth, Kepler’s laws of planetary motion. Gravitational potential energy; gravitational potential. Escape velocity. Orbital velocity of a satellite. Geo-stationary satellites.
    7.Properties of Solids and LiquidsElastic behavior, Stress-strain relationship, Hooke’s Law, Young’s modulus, bulk modulus, modulus of rigidity. Pressure due to a fluid column; Pascal’s law and its applications. Viscosity, Stokes’ law, terminal velocity, streamline and turbulent flow, Reynolds number. Bernoulli’s principle and its applications. Surface energy and surface tension, angle of contact, application of surface tension – drops, bubbles and capillary rise. Heat, temperature, thermal expansion; specific heat capacity, calorimetry; change of state, latent heat. Heat transfer-conduction, convection and radiation, Newton’s law of cooling.
    8.ThermodynamicsThermal equilibrium, zeroth law of thermodynamics, concept of temperature. Heat, work and internal energy. First law of thermodynamics. Second law of thermodynamics: reversible and irreversible processes. Carnot engine and its efficiency.
    9.Kinetic Theory of GasesEquation of state of a perfect gas, work done on compressing a gas. Kinetic theory of gases-assumptions, the concept of pressure. Kinetic energy and temperature: RMS speed of gas molecules; Degrees of freedom, Law of equipartition of energy, applications to specific heat capacities of gases; Mean free path, Avogadro’s number.
    10. Oscillations and WavesPeriodic motion – period, frequency, displacement as a function of time. Periodic functions. Simple harmonic motion (S.H.M.) and its equation; phase; oscillations of a spring -restoring force and force constant; energy in S.H.M. – Kinetic and potential energies; Simple pendulum – derivation of expression for its time period; Free, forced and damped oscillations, resonance.

    Wave motion. Longitudinal and transverse waves, speed of a wave. Displacement relation for a progressive wave. Principle of superposition of waves, the reflection of waves, Standing waves in strings and organ pipes, fundamental mode and harmonics, Beats, Doppler effect in sound

    11.ElectrostaticsElectric charges: Conservation of charge, Coulomb’s law-forces between two point charges, forces between multiple charges; superposition principle and continuous charge distribution.

    Electric field: Electric field due to a point charge, Electric field lines, Electric dipole, Electric field due to a dipole, Torque on a dipole in a uniform electric field.

    Electric flux, Gauss’s law and its applications to find field due to infinitely long uniformly charged straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell. Electric potential and its calculation for a point charge, electric dipole and system of charges; Equipotential surfaces, Electrical potential energy of a system of two point charges in an electrostatic field.

    Conductors and insulators, Dielectrics and electric polarization, capacitor, a combination of capacitors in series and in parallel, the capacitance of a parallel plate capacitor with and without dielectric medium between the plates, Energy stored in a capacitor.

    12.Current ElectricityElectric current, Drift velocity, Ohm’s law, Electrical resistance, Resistances of different materials, V-I characteristics of Ohmic and non-ohmic conductors, Electrical energy and power, Electrical resistivity, Colour code for resistors; Series and parallel combinations of resistors; Temperature dependence of resistance.

    Electric Cell and its Internal resistance, potential difference and emf of a cell, a combination of cells in series and in parallel. Kirchhoffs laws and their applications. Wheatstone bridge, Metre bridge. Potentiometer – principle and its applications.

    13.Magnetic Effects of Current and MagnetismBiot – Savart law and its application to current carrying circular loop. Ampere’s law and its applications to infinitely long current carrying straight wire and solenoid. Force on a moving charge in uniform magnetic and electric fields. Cyclotron.

    Force on a current-carrying conductor in a uniform magnetic field. The force between two parallel current-carrying conductors-definition of ampere, Torque experienced by a current loop in a uniform magnetic field; Moving coil galvanometer, its current sensitivity and conversion to ammeter and voltmeter.

    Current loop as a magnetic dipole and its magnetic dipole moment. Bar magnet as an equivalent solenoid, magnetic field lines; Earth’s magnetic field and magnetic elements. Para-, dia- and ferro- magnetic substances.

    Magnetic susceptibility and permeability, Hysteresis, Electromagnets and permanent magnets.

    14.Electromagnetic Induction and Alternating CurrentsElectromagnetic induction; Faraday’s law, induced emf and current; Lenz’s Law, Eddy currents. Self and mutual inductance. Alternating currents, peak and RMS value of alternating current/ voltage; reactance and impedance; LCR series circuit, resonance; Quality factor, power in AC circuits, wattles current. AC generator and transformer.
    15.Electromagnetic WavesElectromagnetic waves and their characteristics. Transverse nature of electromagnetic waves.

    Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays). Applications of e.m. waves.

    16.OpticsReflection and refraction of light at plane and spherical surfaces, mirror formula, Total internal reflection and its applications, Deviation and Dispersion of light by a prism, Lens Formula, Magnification, Power of a Lens, Combination of thin lenses in contact, Microscope and Astronomical Telescope (reflecting and refracting) and their magnifying powers.

    Wave optics: wavefront and Huygens’ principle, Laws of reflection and refraction using Huygen’s principle. Interference, Young’s double-slit experiment and expression for fringe width, coherent sources and sustained interference of light. Diffraction due to a single slit, width of central maximum. Resolving power of microscopes and astronomical telescopes, Polarisation, plane polarized light; Brewster’s law, uses of plane-polarized light and Polaroids.

    17.Dual Nature of Matter and RadiationDual nature of radiation. Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation; particle nature of light. Matter waves-wave nature of particle, de Broglie relation. Davis son-Germer experiment.
    18. Atoms and NucleiAlpha-particle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum. Composition and size of nucleus, atomic masses, isotopes, isobars; isotones. Radioactivity-alpha, beta and gamma particles/rays and their properties; radioactive decay law. Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission and fusion.
    19.Electronic DevicesSemiconductors; semiconductor diode: I-V characteristics in forward and reverse bias; diode as a rectifier; 1-V characteristics of LED, photodiode, solar cell and Zener diode; Zener diode as a voltage regulator. Junction transistor, transistor action, characteristics of a transistor; transistor as an amplifier (common emitter configuration) and oscillator. Logic gates (OR, AND, NOT, NAND and NOR). Transistor as a switch.
    20.Communication SystemPropagation of electromagnetic waves in the atmosphere; Sky and space wave propagation, Need for modulation, Amplitude and Frequency Modulation, Bandwidth of signals, Bandwidth of Transmission medium, Basic Elements of a Communication System (Block Diagram only).
    Section B – Practical
    Unit 21: Experimental Skills 
    1.Vernier callipers: its use to measure the internal and external diameter and depth of a vessel.
    2.Screw gauge: its use to determine thickness/diameter of thin sheet/wire.
    3.Simple Pendulum: dissipation of energy by plotting a graph between square of amplitude and time.
    4.Metre Scale: the mass of a given object by the principle of moments.
    5.Young’s modulus of elasticity of the material of a metallic wire.
    6.The surface tension of water by capillary rise and effect of detergents.
    7.The coefficient of Viscosity of a given viscous liquid by measuring the terminal velocity of a given spherical body.
    8.Plotting a cooling curve for the relationship between the temperature of a hot body and time.
    9.The speed of sound in air at room temperature using a resonance tube.
    10.The specific heat capacity of a given: Solid, and liquid by method of mixtures.
    11.The resistivity of the material of a given wire using meter bridge.
    12.The resistance of a given wire using Ohm’s law.
    13.Potentiometer: Comparison of emf of two primary cells and Determination of the internal resistance of a cell.
    14.Resistance and figure of merit of a galvanometer by half deflection method.
    15.The focal length of a Convex mirror, Concave mirror, and Convex lens using the parallax method.
    16.The plot of the angle of deviation vs angle of incidence for a triangular prism.
    17.Refractive index of a glass slab using a traveling microscope.
    18.Characteristic curves of a p-n junction diode in forward and reverse bias.
    19.Characteristic curves of a Zener diode and finding reverse breakdown voltage.
    20.Characteristic curves of a transistor and finding current gain and voltage gain.
    21.Identification of Diode, LED, Transistor, IC, Resistor, Capacitor from mixed collection of such items.
    22.Using the multimeter to: (i) Identify base of a transistor (ii) Distinguish between NPN and PNP type transistor (iii) See the unidirectional flow of current in case of a diode and an LED (iv) Check the correctness or otherwise of a given electronic component (diode, transistor or IC).

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    Chapter-wise Weightage

    Chapter-wise Weightage of JEE Main Physics Syllabus 2020

    Here is the chapter wise weightage for JEE Main Physics syllabus, based on the previous year trends.

    Topics

    No of Questions

    Weightage

    Electrostatics

    1

    3.33%

    Current Electricity

    3

    10.00%

    Capacitor

    1

    3.33%

    Magnetic Effect of Current & Magnetism

    2

    6.67%

    Alternating Current

    2

    6.67%

    KTG & Thermodynamics

    2

    6.67%

    SHM

    1

    3.33%

    Sound Waves

    1

    3.33%

    KInematics

    1

    3.33%

    Work Power Energy

    1

    3.33%

    Kinematics

    1

    3.33%

    Laws of motion

    1

    3.33%

    Work,Power and Energy

    1

    6.67%

    Centre Of Mass

    2

    6.67%

    Rotational Dynamics

    2

    6.67%

    Modern Physics

    2

    6.67%

    NLM

    1

    3.33%

    Elasticity

    1

    3.33%

    Wave Optics

    2

    6.67%

    Error

    1

    3.33%

    Circular Motion

    1

    3.33%

    Electromagnetic Waves

    1

    3.33%

    Semiconductors

    1

    3.33%

    Communication System

    1

    3.33%

    Total

    30

    100%


    Study Notes and Video Lectures

    Study Notes and Video Lectures for JEE Main Physics Preparation 2020

    While preparing for JEE Main, candidates must refer to concise and good study notes. Due to busy schedules students might miss out on some classes, to save you from the hassle of collecting notes, here we have provided the PDFs for JEE Main notes covering physics syllabus. Download JEE Main Study Notes from the table below:

    JEE Main Physics Study Material

    Reference Link

    JEE Main Physics Notes (Part I)

    Click Here

    JEE Main Physics Notes (Part II)

    Click Here

    Candidates can also prepare from the online physics video lectures provided by NTA on it’s official website. The steps to access the video lectures are as follows:

    • Visit the official website of NTA i.e. nta.ac.in.

    • Click on the “CONTENT BASED LECTURES - FOR JEE MAIN AND NEET-UG BY IIT PROFESSORS / SUBJECT EXPERTS” tab. 

    • You will be redirected to the page containing the name of different subjects. 

    • Choose the video lecture by clicking on the subject. 

    Direct Link to JEE Main Physics Video Lectures

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    Tips by IITians and Experts

    Maximising Your Score in JEE Main Physics Section - Tips by IITians and Experts

    It’s very essential to not just understand the topics but also have a plan in terms of handling various topics. Candidates should have a clear understanding of their grasp on various chapters, they should work on the ones they find difficult and make sure that they score when they find a question from the topic they find easy. 

    For the assistance of candidates, we have some specific tips on how to handle various topics by IITians and subject experts, candidates can take them into consideration while devising their own plan:

    Mechanics: Weightage and Tips

    Mechanics is one of the fundamental units in JEE Main Exam comprising nearly 35% of JEE Main Physics Syllabus. Mechanics thus becomes a quintessential part of your preparation.

    •  Following the past trends, questions correspond to the following chapters in their descending order of weightage: Rotational Motion, Waves, Units & Dimensions, Oscillations, Work, Energy & Power, Gravity, Mechanics of Solids & Fluids, Laws of Motion followed Kinematics. Some Important topics for your preparation having a higher probability of them being asked in the exam are Dimensional & Error analysis, Equations of Motion, Relative Motion, Simple Harmonic Motion, Kepler’s laws, Projectile & Circular Motion, Satellites, Mechanics of Common Forces, Potential Energy of a spring, Acceleration due to gravity, Transverse & Longitudinal waves-superposition and reflection, Moment of inertia and dynamics of Rotational Motion. The list, however, is not exhaustive.

    • HC Verma Physics is considered to have your basics in place, followed by practicing examples from DC Pandey. IE Irodov Book could be used to practice more complex questions. Solving Previous Year Question Papers is a must to know if your strategy and resources are accurate.

    • For Preparation, ensuring conceptual clarity and logical consistency is of absolute necessity.

    •  Questions need to be solved in a stepwise manner. Ensure you don’t follow short cuts even in your practice registers. The contextual method in your practice helps you improve pace & precision. 

    • If with your planning, you feel marginally comfortable, you can continue by considering answers to challenging problems and then seek to attempt certain problems without answers. 

    • More so, the logical thinking methodology, the analytical reasoning and decision making would ensure that you create a niche for yourself. This resonates with you by associating your theoretical learnings with real-life examples. Even if you are able to begin this process, this will stimulate your thinking and would develop further. Mastering it should not be your concern. Furthermore, time & stress management is of utmost importance.

    • Self-Analysis and self-designed strategy by way of taking numerous Mock Test Papers & consistency in your study routine is key to ace an exam.

    Optics and Modern Physics: Weightage and Tips

    JEE Main Physics questions range from thermodynamics to electromagnetism and as important as these topics are, optics and modern physics are certainly a major part of the exam. Considering optics alone, you can expect 5-6 questions in the examination, and 8-9 questions for both topics. That means that these topics are around 30-33% of JEE Main Physics Syllabus.

    • NCERT questions at the end of each chapter can help you to get started with the preparation.

    • If we go by the historical pattern, just studying these topics won’t be enough to get a good rank in JEE Main. Please keep that in mind, you need to score at least 50% marks to have a good rank. 

    • Some reference books that are good for these topics are:

    Arihant’s Understanding Physics for JEE Main and Advanced Optics and Modern Physics 

    Understanding Physics: OPTICS & MODERN PHYSICS by DC Pandey

    Cengage Physics for JEE (Advanced): Optics & Modern Physics by BM Sharma 

    • A former IITian comments, “I found Understanding Physics by DC Pandey to be most helpful in my case as the solutions were easier to understand. Of course, one of the best books to cover optics and all other topics as well, is HC Verma. Don’t just rely on these reference books. Some solutions may be difficult to understand at first, but according to JEE Advanced, this level might not be too high.”

    • One of the keys to crack JEE is to write mock tests as much as possible. It gives you the idea of the examination as well as how much time you need to divide for each topic. The more mocks you write the better are your chances of making it to an IIT or any institute that you have in mind. Don’t skip any fundamentals, clarity boosts up confidance. 

    Must Read Interviews of JEE Main 2020 Toppers (NTA Score 100)


    Difficulty Level Analysis

    Difficulty Level Analysis for JEE Main Physics 2020

    The level of difficulty of JEE Main Physics section varies in different sessions. For the understanding of candidates, a basic distribution of number of questions in terms of difficulty level of B.E/ B. Tech paper of JEE Main 2020 January session is tabulated below:

    Sections

    Tough

    Medium

    Easy

    Chemistry

    4

    11

    10

    Mathematics

    2

    10

    13

    Physics

    2

    7

    16

    Although as per the above analysis, physics seems to be the easiest section in the January B.E/ B.Tech paper but candidates must keep in mind that level of difficulty is a subjective concern and different candidates can have a different perspective on the question paper.


    Preparation and Question Attempting Tips

    JEE Main Physics - Preparation and Question Attempting Tips

    Physics section plays an important role in both JEE Main and JEE Advanced, it can be a rank uplifting section for some. Candidates operate on different levels of caliber, we have devices some tips that can be helpful to all the candidates: 

    • Make topic-wise short notes of formulas and facts: This is something you can do while your preparation and also when you solve problems. It may seem like a basic strategy but it proves highly essential for memorizing and retaining information.

    • 3 hours of Physics per day: Make sure that you balance your preparation among the three subjects i.e. Chemistry, Physics and Maths. Giving 3 hours to physics on an average should be more than enough. Candidates must keep in mind their strong and weak zones before making their time table. 

    • Don’t jump on conclusions: Candidates often jump on conclusions intuitively while solving the questions. If you find yourself doing this mistake then try to write the information given in the question separately to make sure that you rely on facts while problem solving. 

    • Read the Question at least twice: Don’t panic if you can’t seem to get the question. Read the question carefully again, generally the information that can lead you to the answer of the question is hidden in the statement.

    • Accurate Problem solving approach: During your mock tests and practice papers, keep in mind that solving every question requires the right approach. This approach must include first understanding the question followed by application of concepts and ultimately calculation. 

    • Practice with Previous Year Papers and Mock Tests: Practicing is the most essential component of your preparation as per all the experts. Practice and analyze your performance constantly to know the productivity of your current plan. 

    BIE Telangana has launched free online mock tests for candidates appearing for JEE Main 2020. It’s a unique platform where Telangana Education Department will be holding daily, weekly and grand mock tests series. For candidates who have android based smartphones, BIE has also launched a smartphone application that can help them take the mock tests conveniently using their phones. Register Here

    • Revise at Regular Intervals: Most often than not candidates wait to cover the entire syllabus and then start revising. However, to keep your hold on concepts fresh, you must revise at regular intervals. This will also save your time when you sit for complete rounds of revision. 


    Best Reference Books

    Best Reference Books to Cover JEE Main Physics Syllabus 2020

    Candidates can refer to the following books while preparing for JEE Main Physics section: 

    Publisher/ Author

    Books

    HC Verma

    Concepts of Physics Vol I and II

    I.E. Irodov

    Problems in General Physics

    Arihant Publications

    Understanding Physics by D.C. Pandey: Set of books for:

    Electricity & Magnetism

    Mechanics (Vol. 1 & 2)

    Optics & Modern Physics

    Waves & Thermodynamics

    R.P. Feynman

    Feynman Lectures on Physics

    SS KrotovProblems in Physics

    Arthur Beiser, Shobhit Mahajan, S. Rai Choudhury

    Concepts of Modern Physics

    Halliday, Resnick and Walker

    Fundamentals of Physics

    Advanced Level Physics: Examples and ExercisesNelkon, Michael, Parker, Philip

    However, don’t neglect your NCERT, have a through understanding of it and then move to the ones tabulated above. All the best!

    *The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College

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