Study about: Electric and magnetic properties associated with substances.

Important laws: Lenz's law, Coulomb law, Faraday's law of induction, Biot - Savart law, Maxwell's laws etc.

Study about: Motion of an object and forces governing its motion.

Important laws: Newton's laws of motion, Universal law of gravitation, Pascal's law etc.

Study about: Phenomena of light and optical instruments.

Important laws:Snell's law, Gaussian formula, Brewster's law etc.

Study about: Conversion of heat to other forms of energy and the relation of energy with volume, pressure, temperature etc. of the system.

Important laws:Charles' law, Boyle's law etc.

Study about: Atoms, elementary particles and reactions among them.

Important concepts: Radioactivity , Nuclear fission, Pauli's neutrino hypothesis, Fermi's theory of beta decay etc.

Study about: Designing, construction and working of electronic devices.

Important laws:Ohm's law, Kirchhoff's first and second law, De Morgan's laws etc.

Study about : Measurement of spatial dimensions of objects and other physical quantities .

Important topics : Dimensional analysis, Least count of instrument, SI units etc.

Study about: Universe and the laws governing the motion of all celestial bodies, space exploration.

Important concepts: Kepler's laws for planetary motion, Universal law of gravitation, Big-bang theory etc.