JEE Main 2021 Physics Syllabus (Available) – Get Physics Syllabus PDF Here
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Here Candidates Can get the Official JEE Main Physics Syllabus 2021 which is declared by NTA. JEE Main Exam is divided into two sections.
The JEE Main Physics Syllabus Section is compiled of 2 Sections, i.e, Section A and Section B.
We also have complete JEE Main Syllabus 2021 in PDF and textual formate for students.
JEE Main 2021 Physics Syllabus
Section A
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Get here Unit wise complete Syllabus Online of Physics Section A for the JEE Main Exam 2021.
Unit 1 Physics and Measurement
 Physics, 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.
Unit 2 Kinematics
 The frame of reference. Motion in a straight line: Positiontime graph, speed, and velocity. Uniform and nonuniform motion, average speed and instantaneous velocity Uniformly accelerated motion, velocitytime, positiontime 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.
Unit 3 Law of Motion
 Force 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.
Unit 4 Work, Energy, and Power
 Work was done by a constant force and a variable force: kinetic and potential energies, workenergy theorem, power.
 The potential energy of a spring, conservation of mechanical energy, conservative and nonconservative forces: Elastic and inelastic collisions in one and two dimensions.
Unit 5 Rotational Motion
 Centre of the mass of a twoparticle system.
 Centre of the mass of a rigid body: Basic concepts of rotational motion: movement of a force, torque, angular momentum, conservation of angular momentum and its applications: the moment of inertia, the 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.
Unit 6 Gravitation
 The 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.
 Geostationary satellites.
Unit 7 Properties of Solids and Liquids
 Elastic behavior, Stressstrain 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, the 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 transferconduction, convection, and radiation. Newton’s law of cooling.
Unit 8 Thermodynamics
 Thermal equilibrium, zeroth law of thermodynamics, the concept of temperature. Heat, work, and internal energy.
 The first law of thermodynamics.
 The second law of thermodynamics: reversible and irreversible processes. Carnot engine and its efficiency.
Unit 9 Kinetic Theory of Gases
 The equation of state of a perfect gas. Work is 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.
Unit 10 Oscillations and Waves
 Periodic motion – period, frequency, displacement as a function of time. Periodic functions. Simple harmonic motion (S.l l.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 period; Free, forced and damped oscillations, resonance.
 Wave motion. Longitudinal and transverse waves, the speed of a wave. Displacement relation for a progressive wave. The principle of superposition of waves, a reflection of waves. Standing waves in strings and organ pipes, fundamental mode and harmonics. Beats. Doppler effect in sound.
Unit 11 Electrostatics
 Electric charges: Conservation of charge, Coulomb’s lawforces 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 parallel, the capacitance of a parallel plate capacitor with and without dielectric medium between the plates, Energy stored in a capacitor.
Unit 12 Current Electricity
 Electric current, Drift velocity, Ohm’s law, Electrical resistance, Resistances of different materials, VI characteristics of Ohmic and nonohmic 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 parallel. Kirchhoff’s laws and their applications. Wheatstone bridge, Metre bridge. Potentiometer – principle and its applications.
Unit 13 Magnetic Effects of Current and Magnetism
 Biot – 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 currentcarrying conductor in a uniform magnetic field. The force between two parallel currentcarrying conductorsdefinition of an ampere, Torque experienced by a current loop in the 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 ferromagnetic substances.
 Magnetic susceptibility and permeability, Hysteresis, Electromagnets, and permanent magnets.
Unit 14 Electromagnetic Induction and Alternating Current
Electromagnetic 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.
Unit 15 Electromagnetic Waves
 Electromagnetic waves and their characteristics. Transverse nature of electromagnetic waves.
 Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, Xrays, gamma rays). Applications of e.m. waves.
Unit 16 Optics
 Reflection 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 doubleslit 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 planepolarized light and Polaroids.
Unit 17 Dual Nature of Matter and Radiation
 Dual nature of radiation. Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation; particle nature of light.
 Matter waveswave nature of the particle, de Broglie relation. Davis sonGermer experiment.
Unit 18 Atoms and Nuclei
 Alphaparticle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum. Composition and size of the nucleus, atomic masses, isotopes, isobars; isotones.
 Radioactivityalpha, beta and gamma particles/rays, and their properties; radioactive decay law. Massenergy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission, and fusion
Unit 19 Electronic Devices
 Semiconductors; semiconductor diode: IV characteristics in forward and reverse bias; diode as a rectifier; 1V 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). The transistor as a switch.
Unit 20 Communication Systems
Propagation 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
Get here Unit wise complete Syllabus Online of Physics Section B for the JEE Main Exam 2021.
Unit 21 Experimental Skills
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Familiarity with the basic approach and observations of the experiments and activities:
 Vernier calipersits use to measure the internal and external diameter and depth of a vessel.
 Screw gaugeits use to determine thickness/ diameter of thin sheet/wire.
 Simple Pendulumdissipation of energy by plotting a graph between the square of amplitude and time.
 Metre Scale – a mass of a given object by the principle of moments.
 Young’s modulus of elasticity of the material of a metallic wire.
 The surface tension of water by capillary rise and effect of detergents.
 Coefficient of Viscosity of a given viscous liquid by measuring the terminal velocity of a given spherical body.
 Plotting a cooling curve for the relationship between the temperature of a hot body and time.
 The speed of sound in air at room temperature using a resonance tube.
 Specific heat capacity of a given (i) solid and (ii) liquid by the method of mixtures.
 The resistivity of the material of a given wire using meter bridge.
 The resistance of a given wire using Ohm’s law.
 Potentiometer–
 Comparison of emf of two primary cells.
 Determination of internal resistance of a cell.
 Resistance and figure of merit of a galvanometer by half deflection method.
14. The focal length of:
 Convex minor
 A concave mirror, and
 Convex lens using the parallax method.
15. The plot of the angle of deviation vs. angle of incidence for a triangular prism.
16. Refractive index of a glass slab using a traveling microscope.
17. Characteristic curves of a pn junction diode in forward and reverse bias.
18. Characteristic curves of a Zener diode and finding reverse break down voltage.
19. Characteristic curves of a transistor and finding current gain and voltage gain.
20. Identification of Diode. LED. Transistor. IC. Resistor. The capacitor from a mixed collection of such items.
21. Using the multimeter to:
 Identify the base of a transistor
 Distinguish between NPN and PNP type transistor
 See the unidirectional flow of current in the case of a diode and an LED.
 Check the correctness or otherwise of a given electronic component (diode, transistor, or IC).
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