**JEE Main Physics Syllabus 2021 **– A boon for the students who want to appear for **IIT JEE Main** Paper. Hello Students! we are here with the updated information of IIT JEE Main Physics Syllabus. We have covered nearly all the matter and is presenting a complete article in front of you.

All the students who are appearing or are planning to give exam this year of **JEE Main 2021** can go through our **IIT JEE Main Physics Syllabus**.

**IIT JEE Main Physics Syllabus 2021**

The syllabus of Physics contains two sections A and B. In section A The Theory part contains 80% of weightage whereas Section B contains Practical Component (Experimental Skills) which has 20% of weightage.

JEE Main Physics Syllabus covers near about all details which an applicant may require.

Come lets discuss first Section A.

**Section A Syllabus**

**Unit 1: Physics and Measurement**

In this the chapters of Physics, Technology and society, SI 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 its applications.

**Unit 2: Kinematics**

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.

**Unit 3: 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

Dynamics of uniform circular motion: Centripetal force and its applications

**Unit 4: Work,Energy and Power**

Work done by a constant force and a variable force; kinetic and potential energies, work energy theorem, power.

**Unit 5: Rotational Motion**

Centre of mass of two-particle system, Centre of mass of rigid body; Basic concepts of rotational motion; moment of a force,torque,angular momentum, conservation of angular momnetum aqnd its applications; moment of inertia, radius of gyration. 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.

**Unit 7: Properties of Solids and Liquids**

Elastic behavior, Stress-strain relationship, Hooke’s Law, Young’s modulus, bulk modulus, bulk modulus, modulus of rigidity. Pressure due to fluid column; Pascal’s law and its applications. 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, Newton’s law of cooling.

**Unit 8: Thermodynamics**

Thermal equilibrium, zeroth law of thermodynamics, concept of temperature. Heat, work and internal energy.

**Unit 9: Kinetic Theory of Gases**

Equation of state of a perfect gas, work doneon compressing a gas. law of equipartition of energy.

**Unit 10: 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.

**Unit 11: Electrostatics**

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

**Unit 12: 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.

**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 current carrying conductor in a uniform magnetic field.

**Unit 14: Electromagnetic Induction and Alternating Currents**

Electromagnetic Induction; Faraday’s law, induced emf and current; Lenz’s Law, Eddy currents. Self and mutual inductance. Quality factor, power in AC Circuits, wattless current. Ac generator and transformer.

**Unit 15: Electromagnetic Waves**

Electromagnetic Waves and their characteristics. Transverse nature of electromagnetic 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 and their magnifying powers.

**Unit 17: Dual Nature of Matter and Radiation**

Dual Nature of Matter and Radiation, Photoelectric effect, Hertz and Lenard’s observations.

**Unit 18: Atoms and Nuclei**

Alpha-particle scattering ; Bohr model ; Rutherford’s model of atom;energy levels, hydrogen spectrum.

**Unit 19: Electronic Devices**

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

**Unit 20: Communication Systems**

Propagation of electromagnetic waves in the atmosphere; Sky and space wave propagation, Need for modulation, Amplitude and Frequency Modulation.

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**Section B Syllabus**

**Unit 21: Experimental Skills**

Here are some of the points which are covered under Experimental activities:

**Vernier callipers-** It is used to measure internal ans external diameter and depth of a vessel.

**Screw gauge-** It is used to determine thickness or diameter of a sheet or wire.

**Metre Scale-**

It is used to measure mass of a given object by principle of moments.

Refractive index of a glass slab using a travelling microscope

Using **multi meter** to Identity base of a transistor, check the correctness or otherwise of a given electronic components.

Some of the topics are covered of IIT JEE Main Physics Syllabus which the students have to prepare and has to go through so that they can go through the **IIT JEE Main Physics Syllabus** and can clear the exam successfully.