Physics

Bharat Education Trust, Rasana-Mota

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PHYSICS

When learning about and discussing physics, we focus heavily on energy, the core element of the science. To better understand this connection, it helps to refer to a solid working definition of physics.

The science in which matter and energy are studied both separately and in combination with one another.

Physics is a branch of science whose primary objects of study are matter and energy. Discoveries of physics find applications throughout the natural sciences and in technology, since matter and energy are the basic constituents of the natural world. Some other domains of study—more limited in their scope—may be considered branches that have split off from physics to become sciences in their own right. Physics today may be divided loosely into classical physics and modern physics

And a more detailed working definition of physics may be: The science of nature, or that which pertains to natural objects, which deals with the laws and properties of matter and the forces which act upon them. Quite often, physics concentrates upon the forces having an impact upon matter, that is, gravitation, heat, light, magnetism, electricity, and others.

 Because physics utilizes elements of other branches of sciences, biology and chemistry for example, it has the reputation of being more complicated than other sciences.

Physics, as opposed to natural philosophy (with which it was grouped until the 19th century), relies upon scientific methods in order to describe the natural world.

To understand the fundamental principles of the universe, physics utilizes many workings from the other natural sciences. Because of this overlap, phenomena studied in physics (conservation of energy for example) are common to all material systems. The specific ways in which they apply to energy (hence, physics) are often referred to as the "laws of physics."

Because each of the other natural sciences biology, chemistry, geology, material science, medicine, engineering, and others, work with systems which adhere to the laws of physics, physics is often referred to as the "fundamental science."

For an example of how the laws of physics apply to all of the other sciences, consider that chemistry, the science of matter which studies atoms and molecules, complies with the theories of quantum mechanics, thermodynamics, and electromagnetism in order to produce chemical compounds.

While there are no definitive answers as to whether or not physics is more complex than other sciences, it is safe to say that physics has decidedly more branches, both traditional and modern.

Take for example the range of traditional subdivisions of physics that exist: acoustics, optics, mechanics, thermodynamics, and electromagnetism. And then there are those still considered to be modern extensions: atomic and nuclear physics, cryogenics, solid-state physics, particle physics, and plasma physics.

More about Physics


·         Syllabus

·         Mathematical physics- differential equations


                              -second order differential equations


                              -curvilinear coordinates


                              -special functions


·         Classical mechanics-lagrangian formulation


                              -motion of rigid body


                              -variational principle-langrage’s and hemilton’s  


                              equations


·         Quantum mechanics–general formalism of wave mechanics


                              -exactly soluble eigenvalue problems-the simple


                               harmonic oscillator


                              -angular momentum and parity


·         Statasticalmechanisics-macroscopic and microscopic states


                              -statistical ensembles


                              -some application of statistical mechanics


                              -B.E and F.D distribution


·         Solid state physics-free electron theory of metal


                             -application to plasmons, polaritons and polarons


                             -superconductivity


·         Holography and fiber optics


·         Electromagnetics –boundary value problems in electrostatic fields-


·                             special techniques


·         Plasma physics-characteristics of a plasma in a magnetic field


                         -applications of plasma


·         Radio activity-alpha rays-spectra and decay


                         -beta rays-spectra and decay


                         -gamma rays emission


·         Nuclear physics-nuclear energy


                         -elementary particles


·         Molecular spectra-pure rotational and vibrational rotational spectra


                         -raman and electronic spectra


·         Electronics –network transformations


                                -photo electric devices and thyristors


                                -basics transistor amplifiers


                                -multistage amplifiers


                                -regulated DC power supply


                                -modulation


                                -digital electronics


·         Programming in ANSI C