GATE Physics Syllabus 2027: Section-wise Topics and Changes

The GATE Physics syllabus is the official topic list for the PH paper of the Graduate Aptitude Test in Engineering. For GATE 2027, IIT Madras has published a revised PH syllabus with 11 sections, from Measurements and Error Analysis to Electronics, plus a separate General Aptitude syllabus that is common to every GATE paper.

This page sets out every section of the GATE Physics syllabus 2027 in plain tables, shows what changed from the 2026 version, and suggests an order to study it in. The topic lists below follow the official GATE 2027 PH syllabus document. The official document gives no section-wise weightage, so any weightage you see elsewhere is an estimate from past papers, not an official figure.

Table of Contents

GATE Physics Syllabus 2027

The PH paper has two parts: General Aptitude and Physics. Both are tested in one three-hour computer-based paper.

The 11 Physics sections, in the order of the official document, are Measurements and Error Analysis, Mathematical Physics, Classical Mechanics, Thermodynamics and Statistical Mechanics, Electromagnetic Theory, Optical Physics, Quantum Mechanics, Atomic and Molecular Physics, Solid State Physics, Nuclear and Particle Physics, and Electronics.

Key Changes in the GATE 2027 Physics Syllabus

The official GATE 2027 notice says the syllabi for the test papers have been revised. Comparing the 2027 PH document with the 2026 one shows these changes.

• Two sections added: Measurements and Error Analysis is a new section. Optical Physics now stands on its own, combining wave optics topics with lasers, which earlier sat under Atomic and Molecular Physics.

• Section count: The syllabus moves from 9 sections in 2026 to 11 in 2027.

• Topics not listed in 2027: The Laplace transform, special functions, Liouville's theorem, action-angle variables, the Hamilton-Jacobi equation, radiation from a moving charge, the WKB approximation, the tight binding model, the Kramers-Kronig relation and magnetic anisotropy appear in the 2026 syllabus but not in the 2027 document.

• Topics added or made explicit: 2-probe and 4-probe measurements, grounding and ground loops, DC power supply design, lock-in amplifiers, Jones vectors and matrices, ray-transfer matrices, the Paschen-Back effect, Mossbauer spectroscopy, delta function potentials and waveform generators.

• Semiconductor statistics moved: Electron and hole statistics and metal-semiconductor junctions now sit under Solid State Physics instead of Electronics.

General Aptitude Syllabus

General Aptitude carries 15 marks and is the same for every GATE paper. It rewards steady practice more than new learning.

GATE Physics Section-wise Syllabus

The tables below group the topics named in each section of the official 2027 document into sub-areas, so you can tick them off as you study.

1. Measurements and Error Analysis

This is a new section. Start with error propagation and significant figures, which turn up naturally in NAT questions.

2. Mathematical Physics

• Linear algebra: Linear vector spaces, basis, orthogonality and completeness, matrices, similarity transformations, diagonalisation, eigenvalues and eigenvectors.

• Differential equations: First- and second-order linear differential equations.

• Complex analysis: Cauchy-Riemann conditions, Cauchy's theorem, singularities, the residue theorem and its applications.

• Transforms and tensors: Fourier analysis, tensors and tensor transformations, covariant and contravariant tensors.

3. Classical Mechanics

4. Thermodynamics and Statistical Mechanics

• Thermodynamics: Laws of thermodynamics, phase equilibria, first- and second-order phase transitions, critical phenomena.

• Statistical mechanics: Macrostates and microstates, phase space, ensembles, partition function, free energy, calculation of thermodynamic quantities.

• Quantum statistics: Classical and quantum statistics, degenerate Fermi gas, black body radiation and Planck's distribution law, Bose-Einstein condensation.

5. Electromagnetic Theory

6. Optical Physics

• Waves and interference: Wave equation, plane and spherical waves, superposition, standing waves, phase and group velocity, spatial and temporal coherence, thin dielectric films, Newton's rings, multiple-beam interference, Michelson and Fabry-Perot interferometers.

• Diffraction: Fresnel and Fraunhofer diffraction, rectangular and circular apertures, Rayleigh criterion, double-slit and many-slit diffraction, grating dispersion.

• Polarisation and ray optics: Jones vectors and matrices, linear, circular and elliptical polarisation, birefringence, ray-transfer matrices for mirrors and lenses.

• Lasers: Einstein coefficients, population inversion, two- and three-level systems.

7. Quantum Mechanics

8. Atomic and Molecular Physics

• Atomic spectra: Spectra of one- and many-electron atoms, spin-orbit interaction, L-S and j-j coupling, fine and hyperfine structure.

• Field effects and transitions: Zeeman, Paschen-Back and Stark effects, electric dipole transitions and selection rules.

• Molecular physics: Rotational and vibrational spectra of diatomic molecules, electronic transitions, Franck-Condon principle, Raman effect.

• Spectroscopy: Basics of Raman spectroscopy, NMR, ESR, X-ray and Mossbauer spectroscopy.

9. Solid State Physics

10. Nuclear and Particle Physics

• Nuclear properties: Binding energy, electric and magnetic moments, semi-empirical mass formula, liquid drop and shell models.

• Forces and decays: Nuclear force and the two-nucleon problem, alpha and beta decay, electromagnetic transitions in nuclei.

• Reactions: Rutherford scattering, nuclear reactions, conservation laws, fission and fusion, particle accelerators and detectors.

• Particles: Photons, baryons, mesons and leptons, quark model, isospin symmetry, charge conjugation, parity and time-reversal invariance.

11. Electronics

How the Sections Connect

Several sections share the same tools. Studying them together saves time and helps you see the links examiners like to test.

Which Sections to Prioritise

The official document does not assign weightage, and the 2027 revision means past-paper patterns are only a rough guide. Still, the way the paper is built suggests a sensible order.

• Core theory first: Mathematical Physics, Quantum Mechanics, Electromagnetic Theory and Classical Mechanics underpin most other sections, so time spent here pays back across the paper.

• High-return applied sections next: Solid State Physics, Statistical Mechanics, and Atomic and Molecular Physics usually allow direct, formula-based questions once the core is clear.

• Do not skip the new sections: Measurements and Error Analysis and Optical Physics are new as separate sections, so there are few past questions on them. Read the official topic list carefully and practise standard textbook problems.

• Keep General Aptitude steady: 15 marks is a large share of a paper where qualifying marks have been between 25 and 32 for general candidates in recent years.

Standard Reference Books by Section

GATE Physics questions are set at the level of standard undergraduate textbooks. You do not need many books; one reliable text per section, worked through with its problems, is enough for most students.

Pick the edition you can access easily. What matters more than the book is solving its problems without looking at worked answers first.

How to Cover the GATE Physics Syllabus

A six-month plan works for most students who have finished or are finishing B.Sc honours physics. Adjust the pace to your starting level.

1. Weeks 1 to 8: Mathematical Physics and Classical Mechanics, then Quantum Mechanics. Solve end-of-chapter problems from a standard textbook for each topic, and keep a formula sheet per section.

2. Weeks 9 to 14: Electromagnetic Theory and Thermodynamics and Statistical Mechanics. From week 9, add 30 minutes of General Aptitude practice three times a week.

3. Weeks 15 to 20: Solid State Physics, Atomic and Molecular Physics, and Nuclear and Particle Physics. Start topic-wise timed tests at the end of each section.

4. Weeks 21 to 24: Optical Physics, Electronics and Measurements and Error Analysis. Begin full-length papers once a week.

5. Final phase: Two full-length papers a week, same-day analysis, and revision from an error log of wrong and slow questions.