Physics for NEET-UG

Why this subject matters in the exam

Every NEET-UG question carries the same marks, so a question in Physics is worth exactly as much as one in Biology. What differs is the effort needed to score. Physics questions are usually short, but they often combine a formula, a unit check and a small calculation, and a single slip means a wrong answer and a negative mark. Candidates who build reliable accuracy in Physics gain a real advantage, because it is the subject where many students lose marks they could have secured with steady practice.

High-yield topics

The areas below are drawn from the NCERT chapters that recur in NEET-UG.

• Mechanics: units and dimensions, kinematics in one and two dimensions, laws of motion and friction, work, energy and power, centre of mass and collisions, rotational motion and moment of inertia.
• Gravitation and properties of matter: Kepler's laws, orbital and escape velocity, variation of g, elasticity, surface tension, viscosity and fluid flow with Bernoulli's principle.
• Thermal physics: calorimetry, thermal expansion, heat transfer, laws of thermodynamics, heat engines and refrigerators, kinetic theory of gases.
• Oscillations and waves: simple harmonic motion, spring-mass and pendulum systems, wave on a string, standing waves in strings and pipes, beats and the Doppler effect.
• Electrostatics and current electricity: Coulomb's law, electric field and potential, Gauss's law, capacitors, Kirchhoff's laws, Wheatstone bridge, potentiometer and meter bridge.
• Magnetism and electromagnetic induction: motion of charges in magnetic fields, Biot-Savart law, Ampere's law, magnetic properties of materials, Faraday's and Lenz's laws, AC circuits, transformers and LCR resonance.
• Optics: reflection and refraction, lenses and mirrors, prism, total internal reflection, optical instruments, interference, diffraction and polarisation.
• Modern physics: photoelectric effect, de Broglie waves, Bohr model and hydrogen spectrum, nuclear binding energy, radioactivity, fission and fusion.
• Electronics and communication: semiconductors, p-n junction diode, rectifiers, logic gates and the basics of communication systems.
• Experimental skills: Vernier callipers, screw gauge and error analysis.

How to study this subject

Begin with the NCERT text, line by line, and do not skip the worked examples and in-text figures; they show the style of reasoning the exam expects. After each chapter, write a one-page formula sheet that includes the units and dimensions of every quantity. This habit alone prevents many careless errors.

Physics is learned by solving, not by reading. For each concept, work through the NCERT exercises first, then move to graded multiple-choice questions, and then to previous-year questions on that chapter. When you get a numerical wrong, ask whether the mistake was conceptual, a formula error, a unit slip or arithmetic, and note it in a short error log. Practise estimating answers and eliminating options, because this saves time under exam conditions.

Learn derivations well enough to see where a formula comes from, but do not spend long on proofs. Train yourself to read graphs for slope, area and intercept, and keep calculation practice regular so that arithmetic never becomes the slowest step.

Revision strategy

Plan revision in short, repeated cycles. Revise each chapter within a few days of finishing it, again after about two weeks, and again before every full mock. Use your formula sheets and error log as the main revision material rather than rereading chapters.

In the months before the exam, take timed Physics sections regularly and review every wrong answer. In the final weeks, revise formulas, graphs, standard values of constants and the NCERT practicals, and avoid starting new reference material. Full-length mocks are the best test of whether your speed in Physics holds up alongside Chemistry and Biology.

Preparation with PrepElephant

In the PrepElephant app, Physics practice is organised chapter by chapter with questions based on previous years and a structured question bank, plus full-length mocks for timed practice. The app supports practice and revision; it does not replace working through the NCERT text yourself.