Introduction Dimensions, in very simple words, are to study the nature of any object mathematically. To check how tall a person is, or to see how big the circle is, we have been using dimensions with the magnitude of course for quantifying the objects around us in dayto- day life. Dimensional analysis just refers to the relationship of the different physical quantities with the units of measurement. In this article, we shall discuss what exactly it means, where it comes from and what are its various applications that we see around us at present. What is Dimensional Analysis? Dimensional analysis ... Read More

Introduction The movement of the charged particles is responsible for electric energy. Energy obtained from the kinetic energy or potential energy of the charged particles is the electric energy. Charged particles are atoms, molecules, or ions with a charge. The force of attraction or repulsion between the charged particles ends on coulomb’s law. Electricity is an important form of energy. When there is a disturbance in the attractive force between the charged particles the atom gains or loses electrons. These free electrons are responsible for electricity through them. Electricity is the movement of electric charges. What is a Static ... Read More

Introduction Optical instruments are devices that are used for the enhancement of the images of the object. Anything as simple as a magnifying glass fitted with a convex lens is also an optical instrument. These days we have even complex combinations of lenses that use a very basic phenomenon of optics but have beautiful applications. Through this article, we shall learn about its significance, types, and how they are used in various areas of research as well as in day-to-day lives. What are Optical Instruments? Optical instruments, or can be called just ‘optic’ in short form, are the devices ... Read More

Introduction Thermodynamics is a study that establishes a relationship between heat and work. To understand it well, the concept of two terms- entropy and enthalpy has to be deeply dug in. In this article, the basic definitions of entropy and enthalpy, as well as the differences will be discussed in an ordered way. In very simple words, the entropy is the measure of randomness; on the other hand, the enthalpy represents the total heat of the system. What is Entropy? Entropy is a measurable physical property that represents the degree of disorder of a system. Any kind of matter or ... Read More

Introduction Electromagnetism is one of the most important branches of physics. Among the forces we see in our daily life, all the forces except gravity are electromagnetic. All the forces we encounter in life except gravity (including the tension of a wire, the vertical force of a surface, and the force of friction) are electromagnetic forces that appear between atoms. Any neutral substance has equal number of electrons and protons. If the outermost electrons leave the atom, it becomes free electron and causes an electric current. An atom that has lost an outer electron has a higher positive charge. ... Read More

Introduction The phenomenon of separation of colors in white light is called dispersion. The collection of these colors is called a spectrum. A good example of a color spectrum is the rainbow. Rainbows occur when sunlight is refracted by water droplets during the rainy season. We can see a rainbow when it rains or after it stops raining or when we see a fountain with the sun behind us. The Sunlight falling on water droplets floating in the air is refracted and separated into its seven colors. Therefore, the water droplets floating in the air act as a glass prism. ... Read More

Introduction Most people are very doubtful about the terminology ‘Potential’. In our school time when we first time listened to this term, we learned that potential is somewhat related to the position. However, it means capacity or strength. The term electric potential represents the strength of electricity. When we start a study for electricity, the first thing we have to face is a charge. The charge is the base of electronics. It is of two types; positive and negative. As we proceed with the charge, we come to know about the electric field, electric potential, potential energy, dipole, etc. Every ... Read More

Introduction When we study a charge or a system of charge, we see that every charge has a definite amount of electric field which exerts the electrostatic force of repulsion or attraction on other charges and charged particles according to their nature. The effect of electricity can be experienced with the help of a unit charge, also known as a test charge. The electric field around a charge or system of charge can be described in two forms; The electric field and The electric potential. What is the Electric Potential of a Dipole and System of Charges? The electric potential ... Read More

Introduction With help of our Eyes, we can see the beautiful world around us. This happens due to the light rays. The light rays fall on any object and get reflected by it. These reflected rays fall on our eyes. The eyes have many parts like cornea, aqueous humor, and crystalline lens. The light from here in the form of electric signals moves towards the brain through the optical nerve. But there are certain objects which we can’t see clearly with our naked eyes. We find it difficult to see distant planets and stars clearly with our eyes. Also, small ... Read More

Introduction The electric car is the best achievement by the automobile sector to make the earth pollution-free. Also, it reduces transportation costs due to no fuel charges or lowmaintains costs. If we have a look at the history of the electric car, the first electric car was invented by Gustave Trouve in 1881. The car made by Gustave is a personal fullscale electric car. However, Gustave’s car didn’t get any admiration or success. Gustave Trouvé's electric tricycle, the first electric vehicle in history to be displayed to the public Jacques CATTELIN, Capture d’écran 2016-10-14 à 21.26.28, CC BY-SA 4.0 ... Read More