JEE Main Physics

Mechanics, Thermodynamics, Electromagnetism, Optics and Modern Physics — chapter-wise notes for JEE Main, with 10 solved numericals (average to advanced) per chapter.

1

Units and Measurements

SI units, dimensional analysis, significant figures, error propagation, vernier callipers and screw gauge.

NCERT Class 11JEE Main: 1 Q 11 min read
2

Kinematics

Equations of motion, motion graphs, projectile motion, relative velocity and uniform circular motion.

NCERT Class 11JEE Main: 1–2 Qs 12 min read
3

Laws of Motion

Newton’s laws, impulse and momentum, free-body diagrams, pulleys, lifts, friction and banking of roads.

NCERT Class 11JEE Main: 1–2 Qs 11 min read
4

Work, Energy and Power

Work by variable forces, work–energy theorem, potential energy curves, power, collisions and the vertical circle.

NCERT Class 11JEE Main: 1–2 Qs 10 min read
5

Rotational Motion

Centre of mass, torque, moment of inertia and axis theorems, angular momentum and rolling motion.

NCERT Class 11JEE Main: 1–2 Qs 10 min read
6

Gravitation

Newton’s law of gravitation, variation of g, potential energy, escape and orbital speed, satellites and Kepler’s laws.

NCERT Class 11JEE Main: 1 Q 9 min read
7

Properties of Solids and Liquids

Elasticity, Bernoulli’s principle, viscosity, surface tension, thermal expansion, calorimetry and heat transfer.

NCERT Class 11JEE Main: 1–2 Qs 10 min read
8

Thermodynamics

First law, isothermal and adiabatic processes, specific heats, heat engines, refrigerators and the Carnot cycle.

NCERT Class 11JEE Main: 1–2 Qs 10 min read
9

Kinetic Theory of Gases

Ideal gas, pressure from molecular motion, molecular speeds, degrees of freedom, equipartition and mean free path.

NCERT Class 11JEE Main: 1 Q 9 min read
10

Oscillations

Simple harmonic motion, energy in SHM, spring and pendulum systems, damped and forced oscillations.

NCERT Class 11JEE Main: 1 Q 9 min read
11

Waves

Wave equation, speed of waves, standing waves in strings and pipes, beats and the Doppler effect.

NCERT Class 11JEE Main: 1 Q 9 min read
12

Electrostatics

Coulomb’s law, electric field and dipoles, Gauss’s law, electric potential and potential energy.

NCERT Class 12JEE Main: 1–2 Qs 10 min read
13

Capacitance

Parallel-plate capacitors, series and parallel networks, dielectrics, energy stored and charge sharing.

NCERT Class 12JEE Main: 1 Q 9 min read
14

Current Electricity

Drift velocity, Ohm’s law, cells, Kirchhoff’s laws, Wheatstone bridge, metre bridge, potentiometer and power.

NCERT Class 12JEE Main: 1–2 Qs 10 min read
15

Magnetic Effects of Current and Magnetism

Biot–Savart and Ampère’s laws, Lorentz force, galvanometer conversions and magnetic materials.

NCERT Class 12JEE Main: 1–2 Qs 9 min read
16

Electromagnetic Induction and Alternating Current

Faraday’s and Lenz’s laws, inductance, LCR circuits, resonance, power factor, generators and transformers.

NCERT Class 12JEE Main: 1–2 Qs 9 min read
17

Electromagnetic Waves

Displacement current, properties of EM waves, intensity, radiation pressure and the EM spectrum.

NCERT Class 12JEE Main: 1 Q 8 min read
18

Ray Optics and Optical Instruments

Mirrors, refraction, total internal reflection, lenses, prisms, microscopes and telescopes.

NCERT Class 12JEE Main: 1–2 Qs 10 min read
19

Wave Optics

Huygens’ principle, Young’s double-slit experiment, diffraction, resolving power and polarisation.

NCERT Class 12JEE Main: 1 Q 8 min read
20

Dual Nature of Matter and Radiation

Photoelectric effect, Einstein’s equation, photons and de Broglie matter waves.

NCERT Class 12JEE Main: 1 Q 8 min read
21

Atoms and Nuclei

Bohr model and hydrogen spectrum, nuclear size, binding energy, radioactivity, fission and fusion.

NCERT Class 12JEE Main: 1–2 Qs 8 min read
22

Semiconductor Electronics

Energy bands, doping, p–n junction diode, rectifiers, Zener diode, LED, photodiode and logic gates.

NCERT Class 12JEE Main: 1 Q 9 min read