Class 12 Physics Chapter 13 Nuclei In this blog we will discuss about nuclear fission and fusion. Before starting with the talk, let’s first speak about nuclear energy. Day by day need of energy is increasing. We consume energy by burning fossil fuels. But we also know that, these fuels will finish one day. Therefore, […]
Physics
Young’s Double Slit Experiment
Class 12 Physics Chapter 10 Wave Optics In this blog, we will talk about young’s double slit experiment. For this you should be familiar with coherent sources. Coherent sources are two sources emitting waves with same frequency having constant phase difference. To obtain coherent light British Physicist Thomas Young provided an ingenious technique to lock […]
What is electric current?
Class 10 Science Chapter 4 Electric Spark Electric Current Electric current or Electricity is important in day to day life. Consider, movement of electrons in wire. When metallic wire is not connected to a battery, the free electrons move in random direction. Metallic conductor consist of large number of free electrons, these electrons are very […]
Heat Transfer: Conduction, Convection and Radiation
Class 11 Physics Chapter 11 Thermal Properties of Matter The universal law of conservation of energy states that, “Energy can neither be created nor be destroyed, it changes from one form to another.” Heat is such form of energy. Heat transfer takes place when there is temperature difference between system and its surrounding. In general, […]
The Concept of Carnot Cycle
Class 11 Physics Chapter 12 Thermodynamics Reversible process is one in which system and surrounding can return to their initial states and final states. But reversible process is a theoretical concept. To build such machine. To design such machine having efficiency close to reversible process. Sadi Carnot, a French Engineer tries to find out solution […]
What are Semiconductors?
Class 12 Physics Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits Electronic devices are characterised by the ability to control the flow of electron. Such devices are made of semiconductors. To understand what are semiconductors, one must know about conductors and insulators. Material having high conductivity and low resistivity are conductors. However, material with […]
The Story of Photon
Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter In this blog we will speak in detail about interesting behaviour of light. Light has the ability to show wave nature as well as particle nature but how? Let’s start knowing. The phenomenon of photoelectric effect confirmed that light is made of small energy […]
The Concept of Photoelectric Effect
Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Photoelectric effect occurs when light of frequency greater than threshold frequency fall on metal plate, electrons get emitted from the metal surface. In this blog we will talk minor details of photoelectric effect. Story of Photoelectric Effect Heinrich Hertz, was experimenting on the electromagnetic […]
Concept of polarization of light
Class 12 Physics Chapter 10 Wave Optics During summers, brightness is unbearable to the eye. When you wear sunglasses, intensity of light gets reduced and eyes feel better. The phenomena behind this is, polarization. In this article, you will get detailed understanding of polarization of light. Polarization of light Light travels in random oscillations of […]
What is Surface Tension in Liquids?
Class 11 Physics Chapter 10 Mechanical Properties of Fluids In day to day life surface tension has various example like floating of water striders on water, fluid in test tube raised at the boundaries, floating of oil on water and many more. Phenomena of Surface tension is well explained by science. In this article, let’s […]