first of all I would recommend to you to refer the official syllabus which are provided by nta and focus on those topics

Still I'm giving you a concise information about the topics of 11th and 12th physics

11th

1. Physical World and Measurement
   Includes units of measurement, system of units, SI units, fundamental and derived units, least count, significant figures, errors in measurements, dimensions of physical quantities, and dimensional analysis.

2. Kinematics
   Covers the frame of reference, motion in a straight line, position-time graph, speed and velocity, uniform and non-uniform motion, acceleration, motion equations, scalar and vector quantities, vector operations, unit vectors, projectile motion, and uniform circular motion.

3. Laws of Motion
   Focuses on 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, static and kinetic friction, laws of friction, rolling friction, dynamics of uniform circular motion, centripetal force, and its applications.

4. Work, Energy, and Power
   Includes work done by a constant force and a variable force, kinetic and potential energies, work-energy theorem, power, potential energy of spring, conservation of mechanical energy, conservative and non-conservative forces, motion in a vertical circle, elastic and inelastic collisions in one and two dimensions.

5. Motion of System of Particles and Rigid Body
   Covers the center of mass of a two-particle system, center of mass of a rigid body, basic concepts of rotational motion, moment of a force, torque, angular momentum, conservation of angular momentum and its applications.

6. Gravitation
   Focuses on the universal law of gravitation, acceleration due to gravity, gravitational potential energy, escape velocity, and orbital velocity.

7. Properties of Bulk Matter
   Includes elasticity, stress-strain relationship, Hooke’s law, Young’s modulus, bulk modulus, shear modulus, and Poisson’s ratio.

8. Thermodynamics
   Covers thermal equilibrium, zeroth law of thermodynamics, heat, temperature, internal energy, first law of thermodynamics, second law of thermodynamics, and heat engines.

9. Behavior of Perfect Gas and Kinetic Theory
   Focuses on the ideal gas laws, kinetic theory of gases, and the concept of temperature.

10. Oscillations and Waves
    Includes periodic motion, simple harmonic motion, oscillations, wave motion, speed of a wave, and the principle of superposition

12th

1. Electrostatics
   Covers electric charges, Coulomb’s law, electric field, electric potential, capacitors, and dielectrics.

2. Current Electricity
   Includes electric current, Ohm’s law, resistivity, and Kirchhoff’s laws.

3. Magnetic Effects of Current and Magnetism
   Focuses on magnetic field, Ampere’s law, magnetic force, and magnetic properties of materials.

4. Electromagnetic Induction and Alternating Currents
   Covers Faraday’s law, Lenz’s law, self and mutual induction, and alternating current circuits.

5. Electromagnetic Waves
   Includes the nature of electromagnetic waves, their spectrum, and applications.

6. Optics
   Focuses on reflection, refraction, lenses, optical instruments, and wave optics.

7. Dual Nature of Matter and Radiation
   Covers the photoelectric effect, de Broglie wavelength, and matter waves.

8. Atoms and Nuclei
   Includes atomic models, radioactivity, nuclear reactions, and applications.

9. Electronic Devices
   Focuses on semiconductors, diodes, transistors, and their applications in electronic circuits.