Himachal Pradesh PCS Free Notes
HPPCS Prelims and Mains Notes, HPPSC Test Series
The photoelectric effect The photoelectric effect is the emission, or ejection, of electrons from the surface of, generally, a metal in response to incident light.A material that can exhibit The photoelectric effect is said to be photoemissive, and the ejected electrons are called photoelectrons. The process was discovered by Heinrich Hertz in 1887. Attempts to … Read more Photo electric effect
Simon Commission (1927) Indian Statutory Commission chaired by Simon to go into the question of further constitutional reform All its seven members were Englishmen. Clement Attlee was one of the members. Lord Birkinhead was the secretary of state at that time At its Madras session in 1927 INC decided to boycott the commission “at every … Read more Simon Commission (1927),Civil Disobedience Movement,August Offerand CR Formula
The elements or mineral nutrients are always in circulation moving from non-living to living and then back to the non-living components of the ecosystem in a more or less circular fashion. This circular fashion is known as biogeochemical cycling (bio for living; geo for atmosphere). Nutrient Cycling: The nutrient cycle is a concept that describes … Read more BIOGEOCHEMICAL CYCLE
Three Geological divisions: The peninsular block The Himalayas and other Peninsular Mountains Indo-Ganga-Brahmaputra Plain Peninsualar block is made of gneisses (metamorphic) and granites (igneous). Six physiographic divisions: The Northern and North-eastern Mountains The Northern Plain The Peninsular Plateau The Indian Desert The Coastal Plains The Islands Northern and North-Eastern Mountains Approximate length of … Read more Structure, relief and physiographic divisions
Eutrophication is a syndrome of ecosystem, response to the addition of artificial or natural substances such as nitrates and phosphates through fertilizer, sewage, etc that fertilize the aquatic ecosystem. The growth of green algae which we see in the lake surface layer is the physical identification of an Eutrophication. Some algae and blue-green bacteria … Read more EUTROPHICATION AND HARMFUL ALGAL BLOOMS
Forest ecosystem includes a complex assemblage of different kinds of biotic communities. Optimum conditions such as temperature and ground moisture are responsible for the establishment of forest communities. Forests may be evergreen or deciduous which are distinguished on the basis of leaf into broad-leafed or needle leafed coniferous forests in the case of temperate areas. … Read more FOREST ECOSYSTEM
Solutions Solutions are homogeneous (single-phase) mixtures of two or more components. They are extremely important in Chemistry because they allow intimate and varied encounters between molecules of di?erent kinds, a condition that is essential for rapid chemical reactions to occur. Molarity: Molarity is defined as the number of moles of solute dissolved per litre of … Read more solutions
Rainfall: With an average annual rainfall of 1,170 mm, India is one of the wettest countries in the world. At one extreme are areas like Cherrapunji, in the northeast, which is drenched each year with 11,000 mm of rainfall, and at the other extreme are places like Jaisalmer, in the west, which receives barely … Read more Water Resources
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 e-governance and e- commerce,
1885 W.C. Bannerjee Bombay 1886 Dadabhai Naroji Calcutta 1887 Badruddin Tyabji Madras 1888 George Yule Allahabad 1889 William Weederburn Bombay 1905 G.K. Gokhale Banaras – Issues like welcoming the prince of wales led to feud 1906 Dadabhai Naoroji Calcutta – Approval of issues of swadesi … Read more Congress Sessions