Ray optics

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 Ray optics

Forestry

Forestry in Rajasthan Rajasthan is blessed with great variety of natural resources ranging from scanty vegetation in the western arid region to mixed delicious and sub-tropical evergreen forests in the east and south east of Aravali ranges. Forest cover is 32744.49 sq.km.(12475 sq.km. is reserved, 18222 sq.km.is Protected Forest 2046.75 is unclassified forest) which is … Read more Forestry

Medieval India

              North India       Ghadvalas     Chandradeva*. Jaichandra fought Muhammad Ghur Chandellas of Jejakabhukti/Bundelkhand   *Vidyadhara* & Yashovarman   Paramaras of Malwa   Vakpati Munjal & *Bhoja*   Chahamanas/Chauhans of Sakambhari   Vigraharaja IV Visaladeva, *Prithviraj III* (Chauhan) Kalachuris of Tripuri   Kokalla, Gangeyadeva & *Karina* … Read more Medieval India

chemical bonding and molecular structure

Chemical Bonding and Molecular Structure The smallest particle of element is atom and the smallest particle in a compound is molecule. The force or the binding that keeps the atoms in the molecule combined during the formation of molecule is called chemical bonding. The concepts like that of Kossel-Lewis, VSEPR principle, valence bond theory, molecular … Read more chemical bonding and molecular structure

Freedom of will and moral responsibility

Freedom of will and moral responsibility From its earliest beginnings, the problem of “free will” has been intimately connected with the question of moral responsibility. Most of the ancient thinkers on the problem were trying to show that we humans have control over our decisions, that our actions “depend on us”, and that they are … Read more Freedom of will and moral responsibility

RAS Pre Exam solved Paper 1998

1.Which district has Highest Population growth during 1981-1991: A. Jaipur B. Banswara C. Bikaner D. Ajmer Ans: C 2. According to census 1991, the % of SC, ST in rajasthan: A. 17.29 AND 12.44 B. 13.84 AND 6.77 C. 1729 AND 13.82 D. 12.44 AND 6.77 Ans: A 3. The main cause of frequent drought … Read more RAS Pre Exam solved Paper 1998

Styles of learning, Models of memory, Causes of forgetting.

  Style of Learning Learning styles are the different ways people interpret, organize and represent information. For example, some people learn best by having information presented to them in audio form, such as in a classroom lecture or audio book. Others need hands-on experience or real-world contexts to fully grasp a new concept. There are … Read more Styles of learning, Models of memory, Causes of forgetting.

American War of Independence.

Philosophes such as Voltaire considered England’s government the most progressive in Europe. England’s ruler was no despot, not even an enlightened one. His power had been limited by law. The Glorious Revolution of 1688 had given England a constitutional monarchy. However, while the English monarch’s power was being limited at home, the power of the … Read more American War of Independence.

Religious Movements in Rajasthan

  Rajasthan is blessed with multi-religious society and all the religions found in the country are practiced in Rajasthan in Harmony to each other. Vedic Religion has been practiced in the state since ancient times and worship of sun has been center of religious practice for several communities. Religious movements in Hinduism:-                              Ancient vedic religion … Read more Religious Movements in Rajasthan

Decision-Making: concept, process and techniques

  Decision making is an essential part of planning. Decision making and problem solving are used in all management functions, although usually they are considered a part of the planning phase. A discussion of the origins of management science leads into one on modeling, the five-step process of management science, and the process of engineering … Read more Decision-Making: concept, process and techniques