Do you guys know that the object reflects the light, whenever it falls on the object, and once the reflected light reaches our eyes, we see it. There are a lot of facts related to light, but two most common ones are an image formed by mirrors and bending of light through lenses. In simple terms, mirror means a smooth and highly polished glass surface, through which images are formed by reflection, as the light falls on it. On the other extreme, a lens is a part of the transparent refracting … [Read more...]

Wildlife constitutes the primary natural heritage, all around the world. Continuous industrialization and deforestation, has posed a threat of extinction to the wildlife. So, to conserve and preserve the natural heritage of the country wildlife sanctuaries, national park, biosphere reserves, etc. are earmarked. Wildlife sanctuaries refer to an area which provides protection and favourable living conditions to the wild animals. On the other hand, the national park provides protection to the … [Read more...]

Energy implies the capacity or ability to work vigorously. It has a significant role to play in our day to day life, in fact, it is predominantly required in every field, whether it is a household, industry, communication, transport, defence or agriculture. Energy resources are broadly classified as Conventional and Non-conventional sources of energy. Conventional sources of energy are not present in the environment in abundance, however there uses are unlimited. On the contrary, … [Read more...]

Minerals are defined as the homogeneous substances that occur naturally under varying conditions, in different types of geological environment. It is broadly classified into two categories, i.e. metallic minerals and non-metallic minerals. Metallic Minerals is composed of metals in their original form, whereas no metals are found in non-metallic minerals. Minerals possess a definite chemical structure, and their identification is based on their physical properties. The place where minerals … [Read more...]

Farming is not a one-day affair; rather it requires several days of hard work and proper agricultural procedure to be followed to get the intended output. A range of farming practices has been emerged to increase the productivity, of the agricultural land. Two such farming practices are intensive farming and extensive farming. Intensive Farming is a farming method that uses higher inputs and advanced agricultural techniques to increase the overall yield. In contrast, Extensive Farming is one … [Read more...]

Agriculture is the highly practised occupation all around the world, i.e. there are a lot of people in this world, who earn their livelihood by growing crops, vegetables, fruits, flowers and rearing of cattle. Based on the geographical conditions, level of technology, the demand for produce, and workers required, there is two major classification of farming, i.e. subsistence farming and commercial farming. In subsistence farming, the farmer is involved in the production of crops for local … [Read more...]

Crop refers to a plant of a particular kind, grown on a large scale in a proportion of area, for commercial purposes. For growing crops, a particular pattern or system is followed. Cropping system implies a sequence and management, practised in a piece of land for cultivating crops, over time. The two most commonly contrasted cropping systems are mixed cropping and intercropping. Mixed cropping implies a cropping technique in which different types of crops are cultivated together. On the … [Read more...]

When the incident rays arise from a given object, then it is known as a real object. Further, the light rays emanating from the real object after reflection from the mirror, meet at a certain point, then the optically formed reproduction of an object is known as an image. The two types of images which are formed are real image and virtual image. The real image implies the representation of an actual object, produced when the light rays arising from a single source converge at a particular (real) … [Read more...]

Mirror refers to any smooth polished or shining surface, that can reflect the light beam and form images. It can be of two types, i.e. plane mirror and a spherical mirror. The mirror whose reflecting surface is flat is a plane mirror whereas a mirror with the curved reflecting surface is termed as a spherical mirror. A spherical mirror is of two types, i.e. convex mirror and a concave mirror. A convex mirror has a reflecting surface that bulges outside. On the contrary, in a concave mirror, … [Read more...]

Vaporization is a process of phase transition in which a substance, changes its state from liquid to vapour. It can take place in two ways, i.e. evaporation and boiling. The process of evaporation involves phase transition at a temperature below the boiling temperature. On the other hand, boiling of a substance takes place at boiling point, which may vary with the change in the environmental pressure. Water boils at 100°C, and the temperature does not rise even if heat is continuously … [Read more...]