Name some branches of physics and their fields of study.

Physics deals with the study of matter, energy and interaction between them.

Very common branches of physics and their fields of study are:

(i) Mechanics: The branch of Physics, which deals with the study of techniques for making measurement, kinematics and dynamics of motion and properties of matter like elasticity, surface tension, viscosity, friction, gravitation etc.

(ii) Heat and thermodynamics: Thermodynamics deals with the study of thermal properties of various substances and conversion of heat into mechanical work and vice versa.

(iii) Sound: It studies the vibrations and waves with special reference to agent producing sensation of hearing.

(iv) Electricity and magnetism: The branch electricity and magnetism deals with the study of the properties of electric charge at rest and those when in motion. In this branch we also discuss the unification of electricity and magnetism. 

(v) Light: This branch of Physics deals with the geometrical formation of images through lenses and mirrors, interference, diffraction and polarization of light by using either ray nature or wave nature of light.

(vi) Modem Physics: Modern physics is an effort to understand the underlying processes of the interactions of matter utilizing the tools of science & engineering.The new discoveries for example, structure of atom, radioactivity, fission, fusion reaction etc. are studied in the branch modern physics.

(viii) Electronics: It is branch of engineering that involves the designing and fabrication of electronics devices and their extensive use in a wide range of products, including radios, television sets, calculators, computers, audio and video cassette players, amplifiers, medical instruments and equipments and many other numerous products.