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 […]
Science
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 […]
Doppler effect
Class 12 Physics Chapter 10 Wave Optics Huygen’s principle shows that, if the shape of wavefront is known at time t =0, then it is possible to find the shape of wavefront at later time ?. But this becomes bit difficult if there is relative motion between the source and the observer. The phenomena that […]
How does lens in human eye works?
Class 12 Physics Chapter 9 Ray Optics and Optical Instruments | Class 10 Chapter 11 Human Eye and the Colourful World Human eye consist of crystalline lens, which provides fine adjustments of focal length. This allows the eyes to see nearby and distant objects by making lens thin or flat. Interestingly, the normal vision of […]
Alkanes – The Saturated Hydrocarbons
Class 11 Chemistry Chapter 13 Hydrocarbons Alkanes are the saturated hydrocarbon in which carbon and hydrogen also, carbon and carbon are linked with single bond. Among alkanes, methane is the first member of the family. Second member of family is obtained by replacing one hydrogen atom with carbon atom and by joining sufficient amount of […]
Atmospheric Refraction
Class 10 Chapter 7 Wonders of Light In this article we are going to talk about atmospheric refraction. Some examples of atmospheric refraction are wavering, twinkling of stars, advanced sunrise and delayed sunset Atmospheric Refraction – Wavering or Flickering In summer days, during afternoon, we can see apparent, random wavering on the hot road. This […]
Kingdom Animalia
Class 9 Science Chapter 7 Diversity in Living Organisms Huge diversity is seen in living organisms hence, living organisms are classified into kingdom plantae and kingdom animalia. In this article we will specifically speak about kingdom animalia. Kingdom animalia is again classified into different phylums, Porifera, Coelenterata, Platyhelminthes, Nematoda, Annelida, Arthropoda, Mollusca, Echinodermata, Protochordata and […]
What is Air Pollution?
Class 11 Chemistry Chapter 14 Enviromental Chemistry Air pollution is the addition of unwanted component in air that causes harm to living organisms. Air pollution is nothing but atmospheric pollution. Atmospheric pollution is generally studied as tropospheric pollution and stratospheric pollution. Tropospheric pollution occurs due to undesirable solid or gaseous particle in the air. It […]
What is a cell?
Class 8 Science Chapter 8 Cell Structure and Functions | Class 9 Science Chapter 5 The Fundamental Unit of Life Cell is smallest structural unit and functional unit of organism. In this article we will discuss about cell. Let’s first speak about its discovery. Discovery of cell In 1665, Robert Hooke used slice of cork […]
Earthquake – A Natural Phenomena
Class 8 Science Chapter 15 Some Natural Phenomena An earthquake is sudden shaking or trembling of surface of earth, occuring due to movement of hot fluid in the Earth’s crust. Earthquake last for very short time. In general, earthquakes are occurring all the time everywhere on the earth but they are not noticed. There are […]