Agriculture

Agriculture Sector of Rajathan Major Agricultural Issues of Rajasthan are:-  To achieve self-sufficiency in food production.  To increase Agricultural production and income of farmers / farm labours.  To promote sustainable use of Natural Resources such as Land and Water.  To promote Soil Health Management and Integrated Nutrient Management.  Promote Crop … Read more Agriculture

Atomic structure

Atomic Structure In 1897 J.J. Thomson discovered electron as a constituent of atom. He determined that an electron had a negative charge and had very little mass as compared to that of the atom. Since an atom was found to be electrically neutral it was inferred that some source of positive charge must be present … Read more Atomic structure

Chemical kinetics

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 Chemical kinetics

Corrosion and its prevention

Corrosion is defined as an attack on a material as a result of chemical, frequently electrochemical reaction, with the surrounding medium. According to this definition, the term corrosion can be applied to all materials, including non-metals. But in practice, the word corrosion is mainly used in conjunction with metallic materials. Why do metals corrode? Apart … Read more Corrosion and its prevention

Respiratory System

Respiratory System Introduction Red blood cells are like trucks that transport cargo on a highway system. Their cargo is oxygen, and the highways are blood vessels. Where do red blood cells pick up their cargo of oxygen? The answer is the lungs. The lungs are organs of the respiratory system. The respiratory system is the … Read more Respiratory System

pH Scale and importance of pH in daily life

Acid An acid is a substance which forms H+ ions as the only positive ion in aqueous solution. Examples:- Hydrochloric acid dissolved in water forms H+ and Cl– ions HCl —> H+ + Cl–   Sulphuric acid dissolved in water forms H+ and SO42- ions H2SO4 —>2H+ + SO42-   Nitric acid forms H+ and NO3– ions when dissolved in water HNO3 —> H+ + NO3–   … Read more pH Scale and importance of pH in daily life

Electromagnetic Waves

Electromagnetic Wave Electromagnetic Wave are waves composed of undulating electrical fields and magnetic fields. The different kinds of electromagnetic waves, such as light and radio waves, form the electromagnetic spectrum. All electromagnetic waves have the same speed in a vacuum, a speed expressed by the letter c (the speed of light) and equal to about … Read more Electromagnetic Waves

Role of drdo in various fields (other than weapons)

Role of drdo in various fields (other than weapons) The Defence Research and Development Organisation (DRDO) is an agency of the Republic of India, charged with the military’s research and development, headquartered in New Delhi, India. It was formed in 1958 by the merger of the Technical Development Establishment and the Directorate of Technical Development … Read more Role of drdo in various fields (other than weapons)

contributions of Indian scientists in the development of science

Contributions of Indian scientists in the development of science: Ancient ,Medieval and Modern Science and Mathematics were highly developed during the ancient period in India. Ancient Indians contributed immensely to the knowledge in Mathematics as well as various branches of Science. Medieval period marks the coming of Muslims in India. By this time, the traditional … Read more contributions of Indian scientists in the development of science