JEE Main

# JEE Main Physics Syllabus 2023 – Complete JEE Mains Physics Syllabus

Physics is a difficult section in the JEE Main Examination as per the candidates, teachers as well as JEE Main Paper Analysis. JEE Main Physics Syllabus is prepared from class 12 Physics Syllabus and class 11 Physics Syllabus syllabus decided by the Central board of secondary education.

Those who crack the JEE Main 2023 will qualify for the JEE Advanced 2023. The candidates who qualify for JEE Advanced will be eligible to get admission in 31 NITs, 23 IIITs, and 23 GFTIs. National Testing Agency (NTA) devises the complete syllabus for JEE Main which is the conducting authority of the examination.

This article will give you complete information regarding the JEE Main Physics Syllabus 2023.

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## JEE Main Physics Syllabus 2023

Check the complete section-wise JEE Main Syllabus for Physics below:

### JEE Main Physics Syllabus: Section A

#### UNIT 1: Physics and Measurement

 Physics and Measurement Physics, technology, and society, S I units, Fundamental and derived units. Least count, accuracy, and precision of measuring instruments, Errors in measurement, Significant figures. Dimensions of Physical quantities, dimensional analysis, and applications

#### UNIT 2: Kinematics

 Kinematics The frame 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

#### UNIT 3: Laws of Motion

 Laws 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, Energy, and Power Work is done by a constant force and a variable force; kinetic and potential energies, work-energy theorem, power, The potential energy of a spring, conservation of mechanical energy, conservative and non-conservative forces; Elastic and inelastic collisions in one and two dimensions.

#### UNIT 5: Rotational Motion

 Rotational Motion Centre of the mass of a two-particle system, Centre of the mass of a rigid body; Basic concepts of rotational motion; a moment 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

 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. Geo-stationary satellites.

#### UNIT 7: Properties of Solids and Liquids

 Properties of Solids and Liquids Elastic 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.

#### UNIT 8: Thermodynamics

 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

 Kinetic Theory of Gases Equation 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.

#### UNIT 10: Oscillations and Waves

 Oscillations and Waves Periodic 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

#### UNIT 11: Electrostatics

 Electrostatics Electric 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, the 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.

#### UNIT 12: Current Electricity

 Current Electricity Electric current, Drift velocity, Ohm’s law, Electrical resistance, Resistances of different materials, V-I 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 in parallel. Kirchhoff’s laws and their applications. Wheatstone bridge, Metre bridge. Potentiometer – principle and its applications.

#### UNIT 13: Magnetic Effects of Current and Magnetism

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

#### UNIT 14: Electromagnetic Induction and Alternating Currents

 Electromagnetic Induction and Alternating Currents 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 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

 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 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.

#### UNIT 17: Dual Nature of Matter and Radiation

 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 waves-wave nature of particle, de Broglie relation. Davisson-Germer experiment.s

#### UNIT 18: Atoms and Nuclei

 Atoms and Nuclei Alpha-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.

#### UNIT 19: Electronic Devices

 Electronic Devices Semiconductors; semiconductor diode: I-V characteristics in forward and reverse bias; diode as a rectifier; I-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.

#### UNIT 20: Communication Systems

 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)

### JEE Main Physics Syllabus: SECTION-B

#### UNIT 21: Experimental Skills

Familiarity with the basic approach and observations of the experiments and activities:

• Vernier calipers – its used to measure the internal and external diameter and depth of a vessel.
• Screw gauge-its use to determine thickness/diameter of thin sheet/wire.
• Simple Pendulum-dissipation of energy by plotting a graph between square of amplitude and time.
• Metre Scale – a mass of a given object by 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.
• Co-efficient 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.
• Speed of sound in air at room temperature using a resonance tube.
• Specific heat capacity of a given (i) solid and (ii) liquid by method of mixtures.
• The resistivity of the material of a given wire using a meter bridge.
• The resistance of a given wire using Ohm’s law.
• Potentiometer – (i) Comparison of emf of two primary cells. (ii) Determination of internal resistance of a cell.
• Resistance and figure of merit of a galvanometer by half deflection method.
• The focal length of (i) Convex mirror (ii) Concave mirror, and (iii) Convex lens using parallax method.
• The plot of the angle of deviation vs angle of incidence for a triangular prism.
• Refractive index of a glass slab using a traveling microscope.
• Characteristic curves of a p-n junction diode in forward and reverse bias.
• Characteristic curves of a Zener diode and finding reverse break down voltage.
• Characteristic curves of a transistor and finding current gain and voltage gain.
• Identification of Diode, LED, Transistor, IC, Resistor, Capacitor from mixed collection of such items.
• Using a multimeter to (i) Identify the 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).

## JEE Main Physics Syllabus Weightage ## JEE Main Physics Important Topics

 Input Required High Weightage Low Weightage Low Input Heat & Thermodynamics Heat Transfer Ray Optics Fluids Electromagnetic Waves Nuclear Physics & X-Rays Semiconductors Work, Energy & Power Error & Instrument Analysis Units & Measurements Gravitation Dual Nature of Matter & Radiation Wave Optics Photoelectric Effect Oscillations High Input Electromagnetic Induction & Alternating Current Circular Motion Rotation Center of Mass & Collisions Kinematics Communication Systems Electrostatics Laws of Motion Current Electricity & Capacitors Properties of Matter Magnetic Effects of Current & Magnetism Bohr’s Atomic Model Waves & Sound

## Conclusion

Physics is a challenging subject and students are quite afraid of it. There are a lot of numerical-based questions and concepts that require constant practice. However, it’s a scoring subject and the students must prepare efficiently to gain good marks.

Prepare effectively to escalate your final score and crack this prestigious examination.

Good luck with all your future endeavors!

### Lokesh Joshi

My Name is Lokesh Joshi and I am Computer Science Engineer by the profession and I am passionate about technology and integrating it with innovative ideas to give startups the initial boost that they require.

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