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# Modern Physics

Modern physics is a branch of physics in which matter and energy are not separate, but instead are alternate forms of one another. The term modern physics refers to the study of facts and theories developed in this century that concern the interactions of matter, space and time. There have been enormous advances in physics, and some of these advances have brought into question, or have directly contradicted, certain theories that had seemed to be strongly supported by the experimental evidence.

## What is Modern Physics?

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Modern physics is a rich field including decisive experiments conducted in the early part of the twentieth century and most recent research that has given us a deeper understanding of fundamental process in nature. In conjunction with our growing understanding of the physical world, a burgeoning technology has led to the development of lasers, solid state devices, and many other innovations. This  section will give more idea about modern physics.

## Father of Modern Physics

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Modern physics is a branch of physics existing after Newton. The classical physics was not enough to solve and explain the existing problems and hence modern physics came into existence. Einstein is called the father of modern physics. He was the one who came up with most of the concepts of modern physics. For example the theory of relativity was developed by him. Albert Einstein turned the scientific world on its head when he figured out E=mc2, the formula that said that energy and mass were actually the same thing i.e. the ability to do work and the material to do work with.
Einstein’s equation,

$E$ = $mc^{2}$

Einstein changed the way we think about space, time and matter. His contribution to theoretical physics was significant enough to award him with Nobel Prize. So he is rightly justified as the Father of Modern Physics.

## Particle Physics

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Particle physics is the study of the fundamental constituents of matter and the forces of nature. This branch of science deals with the particles that make up matter. The interaction between these particles and their existence is studied in particle physics. The standard model is the latest model that describes the existence of particles that make up matter, any some fundamental interaction amongst them. These are the strong, weak as well as electromagnetic interactions. It states the existence of 24 fundamental particles and predicts the existence of Higgs Boson. The term "particle physics" usually refers to the study of "smallest" particles and the fields that must be defined in order to explain the observed particles which are the constituents of matter. Particle physics aims to develop fundamental models, conduct experiments etc. for the discovery of new fundamental particles that make up matter.
The main aim is to develop and research beyond the “standard model” so that further revolutions can be made. There include Collider and non-Collider experiments.

## Nuclear Physics

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Nuclear Physics is a branch of science that deals with the study of fundamental particles namely nucleus, the constituents and interactions of atomic nuclei. Nuclei are made up of protons and neutrons bound together by the strong force. Both protons and neutrons are referred to as nucleons. A heavy nucleus can contain hundreds of nucleons wherein the nucleus has an energy which arises partly from surface tension and partly from electrical repulsion of the protons. Nuclear physics deals with the study of structure and components of nucleus. Various models related to the nucleus and their development by various scientists, their experiments, theories etc. are part of Nuclear Physics.
 More topics in Modern Physics Particle Physics Nuclear Physics The Physics of the Atom Electrons and Photons Nuclei Atomic and Molecular Physics Blackbody Radiation Photo Electric Effect Wave Particle Duality Atomic Theory Special Theory of Relativity
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