HPSC Prelims and Mains Notes, HPSC Test Series
Dairy and Animal husbandry with special reference to Rajasthan What is Animal Husbandry Animal Husbandry is a branch of agriculture, which comprises of controlled cultivation, management, up keeping and production of domestic animals (like cattles, horses, sheeps etc.) which includes improvement in the qualities considered desirable by humans by means of breeding, genetics, behavior and … Read more
India’s Missile program Introduction India’s missile programme took a shot from space programme, beginning 1967. In 1972, Rohini- a 560 two-stage, solid propulsion sounding rocket was developed and test fired India first launched its small 17-tonne SLV-3 space booster in 1979 India successfully injected the 35 kg Rohini I satellite into near-earth orbit in … Read more
Chemical kinetics Chemical kinetics is that branch of chemistry which deals with the study of the speeds or the rates of chemical reactions, the factors affecting the rates of the reactions and the mechanism by which the reactions proceed. It concerns itself with the measurement of rates of reactions proceeding under the given conditions of … Read more
Nuclear physics Atoms in nature generally are electrically neutral, as they have equal numbers of protons in the nucleus and orbiting electrons. However, within the nucleus there are other particles called neutrons, which are electrically neutral but have about the same mass as protons. There are two numbers used to characterize a nucleus: Z, the … Read more
Catalyst Catalyst, in chemistry, any substance that increases the rate of a reaction without itself being consumed. Enzymes are naturally occurring catalysts responsible for many essential biochemical reactions. Most solid catalysts are metals or the oxides, sulfides, and halides of metallic elements and of the semimetallic elements boron, aluminum, and silicon. Gaseous and liquid catalysts … Read more
Nanotechnology relates to the technology of rearranging and processing of atoms and molecules to fabricate material to Nano specifications such as nano meters, the technology will enable scientist and engineers to see and manipulate matter at the molecular level atom by atom create new structure with fundamentally new molecular organic material and exploit the novel … Read more
Current Electricity Electric current is the rate of flow of electric charge through a conducting medium with respect to time. It is caused by drift of free electrons through a conductor to a particular direction.Charges in motion constitute an electric current. Such currents occur naturally in many situations. Lightning is one such phenomenon in which … Read more
Ray Optics The wave model of light has one serious drawback, though: Unlike other wave phenomena such as sound, or surface waves, it wasn‟t clear what the medium was that supported light waves. Giving it a name – the “luminiferous aether” – didn‟t help. James Clerk Maxwell‟s (1831 – 1879) theory of electromagnetism, however, showed … Read more
E- Governance E-government refers to the delivery of national or local government information and services via the Internet or other digital means to citizens or businesses or other governmental agencies. E-government is a one-stop Internet gateway to major government services. E-government facilitates provision of relevant government information in electronic form to the citizens in a … Read more
Nanotechnology and its applications The concept “Nanotechnology” was first proposed by Richard Feynman on 29th December, 1959 in his talk entitled “There’s plenty of room at the bottom” at the California Institute of Technology. Deriving its name from the Greek word “dwarf” meaning small, nanotechnology is commonly defined as the combined art of science and … Read more