Found 5830 Articles for Physics

Light Filtering Polaroid Films - Polarization

Praveen Varghese Thomas
Updated on 24-Jan-2023 17:06:56
Introduction Light is represented by an Electromagnetic Wave (EMW), where it travels by oscillating electric and magnetic field intensities simultaneously. Here, the electric field will be perpendicular to the magnetic field and vice versa. Not only that, these two components together oscillate perpendicular to the direction of propagation of light waves. Mainly, oscillations due to electric fields in a plane are considered for the light as electromagnetic waves when compared to magnetic fields. Hence, light electromagnetic waves are also called transverse waves. Since the atoms that produce EMW can vibrate or oscillate in all directions, it will be difficult to ... Read More

Lepton

Praveen Varghese Thomas
Updated on 25-Jan-2023 03:04:22
Introduction In the history of physics, the composition of matter was always a central question. The question “What is the universe made of?” is baffling scientists since ancient times. At the beginning of the 20th century, several experiments were carried out by the physicists like Thomson, Rutherford, etc. They found that an atom is made is not indivisible, and it is made of smaller particles. Slowly, it became clear that the atom consists of electrons, protons, and neutrons. Protons and neutrons reside in the nucleus and the electrons revolve around it. In the 1930s, many physicists thought that the problem ... Read More

Lenz’s Law

Praveen Varghese Thomas
Updated on 24-Jan-2023 15:59:47
Introduction Electricity and magnetism were initially separate subjects. Electricity was related to the charges and magnetism was related to the magnetic materials only. However in the 19th century a Danish physicist, Oersted demonstrated that there is a relation between these two. He found that electric current can create a magnetic field around them. Michael Faraday the British experimental scientist reported one interesting phenomenon. He found that if we move a magnet around a coil connected to a galvanometer, we see deflection in that. The presence of the current in the circuit in such cases implies that an electromotive force gets ... Read More

Elastic Behaviour of Materials

Praveen Varghese Thomas
Updated on 24-Jan-2023 15:15:53
Introduction Every matter in the universe is composed of tiny particles called molecules. They attract each other with some attractive force. There exists an intermolecular force of attraction between molecules. Based on the force of attraction between the molecules, matters are classified into five categories. They are solid, liquid, gas, plasma, and Bose-Einstein. Solids are the matter in which the distance between the molecules is very small and they are tightly bound to each other. Liquids are matter having molecules at a small distance and they bound less tightly than solids. What is Elasticity? When a force is applied ... Read More

Elastic Behavior of Solids

Praveen Varghese Thomas
Updated on 24-Jan-2023 14:50:39
Introduction Every matter in the universe is composed of tiny particles called molecules. They attract each other with some attractive force. There exists an intermolecular force of attraction between molecules. Based on the force of attraction between the molecules, matter are classified into five categories. They are solid, liquid, gas, plasma, and Bose-Einstein. Solids are matter in which the distance between the molecules is very small and they are tightly bound to each other.What is Elasticity? When a force is applied to a body it gets deformed. If the body regains its original shape after the removal of force from ... Read More

Einstein Field Equation

Praveen Varghese Thomas
Updated on 24-Jan-2023 14:40:22
Introduction The immense importance of Einstein Field Equations ("EFE") warrants a thorough understanding of every single element contained within them. Einstein's equation is another name for the Einstein Field Equation. Ten equations make up this set which is derived from the General Theory of Relativity of Albert Einstein. This tutorial aims to present a tight, clear, and simple logic of EFE that is also comprehensive so that any general mathematician can understand EFE by simply reading this tutorial. In this tutorial, we will describe Einstein Field Equations, metric tensor, Einstein tensor, properties of Einstein tensor, the cosmological constant, and Practical ... Read More

Earth's Satellites

Praveen Varghese Thomas
Updated on 24-Jan-2023 14:28:05
Introduction A satellite is an object that revolves around a planet in a curved path. When it comes to satellites, there are two major types of classification. The first is a natural satellite, and the second is an artificial satellite. A natural satellite is one of the celestial bodies that orbit a larger body in space. Other than planets and their moons, natural satellites such as comets and asteroids exist. Artificial satellites are satellites that are built by humans and launched into orbit using rockets. Artificial satellites include navigation satellites, weather satellites, communication satellites, and so on. This article will ... Read More

Dynamic Lift

Praveen Varghese Thomas
Updated on 24-Jan-2023 14:06:52
Introduction The particle is considered to be in motion when it changes its position to time. That means the particle is displaced from one position to another. The particle makes linear displacement If it is moving in linear motion. Similarly, the particle makes angular displacement if it is moving in a circular motion. That means circularly moving particles make angular displacement. There are laws describing the motion of particles. According to the first law, the particle does not change its state of motion or rest without any external force. The second law indicates that the force acting on the particle ... Read More

Dwarf Planets

Praveen Varghese Thomas
Updated on 24-Jan-2023 12:48:04
Introduction Astrophysics is the branch of science that gives all information about the universe and our place. The surrounding that covers the total universe is called space. The universe contains all planets, stars, galaxies, and various forms of energy in the universe. Some of them have their illumination among the above. The solar system consists of the sun which is surrounded by the planets such as mercury, venus, earth, mars Jupiter Saturn, and uranium. They revolve around the sun in their path. The knowledge about celestial bodies such as the sun, planets, comets, stars, and galaxies is gathered from the ... Read More

Electrolytic Capacitor

Praveen Varghese Thomas
Updated on 24-Jan-2023 16:39:52
Introduction Capacitors are components used for two purposes - filtering and coupling. They are powered in a circuit with DC sources to acquire charge and dissipate the charge. Out of four types of capacitors which are discussed in detail in the coming sections, the electrolytic capacitor has a special construction utilizing chemical gel as one of the electrodes. The gel, foil, and dielectric coating of aluminum oxide design help to provide a high capacitance value with minimum size. This article conveys the general concepts of capacitors with a focus on electrolytic capacitors. It is important to note that alternate current ... Read More
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