IIT JAM Physics 2025 Chapter-Wise Weightage

Solid State Physics, Electronic Devices & Boolean Algebra

20%

Mathematical Physics

15%

Oscillations, Waves, and Optics

15%

Kinetic theory, Thermodynamics

12%

Electricity and Magnetism

12%

Other Topics (Mechanics, Quantum Mechanics.)

26%

Electrodynamics

Modern Physics

Optics

Solid State Physics

Mechanics and General Properties of Matter

Electronics

Section A

30

10 questions - 1 mark

20 questions - 2 marks

⅓ marks will be deducted for each one-mark question.

⅔ marks will be deducted for each two marks question

MCQ

Computer-Based Test (CBT - Online)

Section B

10

10 questions - 2 marks each

No negative marking

MCQ

Computer-Based Test (CBT - Online)

Section C

20

10 questions - 1 mark

10 questions - 2 marks

No negative marking

No options will be displayed

Computer-Based Test (CBT - Online)

Solid State Physics, Electronic Devices & Boolean Algebra

• Crystal structure
• Bravais lattices and basis Miller indices
• X-ray diffraction and Bragg's law
• Intrinsic and extrinsic semiconductors
• Simple Oscillators

Mathematical Physics

• Calculus of single and multiple variables
• Vector Algebra
• Vector Calculus
• Multiple Integrals
• Divergence Theorem

Oscillations, Waves, and Optic

• Differential equation for simple harmonic oscillator and its general solution
• Superposition of two or more simple harmonic oscillators
• Lissajous figures
• Damped and forced oscillators, resonance
• Wave equation, traveling and standing waves in one-dimension

Kinetic Theory, Thermodynamics

• Elements of Kinetic theory of gases
• Velocity distribution and Equipartition of energy
• Specific heat of Mono-, di- and tri-atomic gases, Ideal gas, van-der-Waals gas and equation of state
• Mean free path

Electricity and Magnetism

• Coulomb’s law, Gauss’s law
• Electric field and potential
• Electrostatic boundary conditions
• Solution of Laplace’s equation for simple cases
• Conductors, capacitors, dielectrics, dielectric polarization, volume and surface charges, electrostatic energy
• Alternating Currents

Other Topics (Mechanics, General Properties of Matter, and Modern Physics)

• Newton’s laws of motion and applications
• Velocity and acceleration
• Motion
• Gravitational Law and field
• Kinematics of moving fluids
• Inertial frames and Galilean invariance
• Postulates of special relativity
• Lorentz transformations
• Length contraction, time dilation
• Relativistic velocity addition theorem, mass-energy equivalence
• Radioactivity and its applications