Notes and Study material for Exams
rawan239 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 … Read more
Robotics Robotics is a branch of engineering and science that includes electronics engineering, mechanical engineering and computer science and so on. This branch deals with the design, construction, use to control robots, sensory feedback and information processing. These are some technologies which will replace humans and human activities in coming years. These robots … Read more
Fermentation Which of the following is the most efficient type of respiration? (A) Aerobic respiration (B) Anaerobic respiration (C) Photosynthesis (D) Fermentation Which of the following is the process by which Plants use sunlight to create food? (A) Aerobic respiration (B) Anaerobic respiration (C) Photosynthesis (D) Fermentation Which of the following is the … Read more
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 … Read more
Microbiology Microbiology is the study of microbes or the living organisms that are too small to be visible with the naked eye. These living things can be seen only with the use of a Microscope. These life forms are called Microorganisms or microbes. Microorganisms include bacteria, archaea, viruses, protozoa, microscopic Fungi and yeasts, … Read more
Remote sensing- GIS and its application Remote Sensing Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object and thus in contrast to on-site observation. In current usage, the term “remote sensing” generally refers to the use of satellite- or aircraft-based sensor technologies … Read more
Relation between focal length and redius of curvature The focal length (f) of a lens is the distance between the center of the lens and the point at which the reflected Light, of a beam of light travelling parallel to the center line, meets the center line (principal axis). The radius of curvature … Read more
Refraction of Light Refraction is the bending of light (it also happens with Sound, water and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for us to have lenses, magnifying glasses, prisms and rainbows. Even our eyes depend Join Our Telegram Channel upon … Read more
The Rate of a Chemical Reaction The rate of a chemical reaction can be defined as the amount of the reaction which occurs in unit time. The rate of a reaction is measured by choosing certain properties of the reaction which will indicate how far the reaction has gone, and whose … Read more
Properties and applications of petroleum products Gases Gaseous refinery products include hydrogen, fuel gas, ethane, propane, and butane. Most of the hydrogen is consumed in refinery desulfurization facilities, which remove hydrogen sulfide from the gas stream and then separate that compound into elemental hydrogen and sulfur; small quantities of the hydrogen may be … Read more