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KNOWLEDGE HUB 
Get Knowledge Hub in Every Page that has been added with Very Useful information related to various fields as it will guide you to plan your studies, Look for the Sample here
  • The pure substances made by the chemical combination of two or more substances are called Compounds
  • The minute particle of any element that takes part in the chemical reaction is called a Atom
  • The non metal which is the essential component of bones, teeth is Phosphorous
  • The main component of gun powder and explosives is Sulphur
  • A mixture in which the size of particles is between the particles that are found in a true solution and suspension is Colloid
  • The example for the Disperse phase solid and medium solid is Coloured glass
  • The cavity that exists between the body wall and the digestive tube is Coelem
  • The largest phylum in the animal kingdom is Arthropoda
  • The unique system of canals containing appendages is Tube feet
  • The longest bone of the body is Femur or Thigh bone
  • The smallest bone of the body is middle ear bone
  • The double layered membrane surrounding the nucleus is Nuclear membrane
  • The hydrocarbon used in the preparation of explosives is Toluene
  • Handles of cooking vessels are made up of bakelite because it melts at high temperature
  • Cement flooring is treated with water after it is laid to avoid cracking
  • The process of preparation of soap was discovered by Carl Wilhelm sheel in 1783
  • The tool used to diagnosis of fluid filled organs like Bladder, Kidneys is Ultrasonic waves
  • The unit of frequency of waves is Hertz
  • Ultrasonic waves are used in the manufacture of emulsions for photographic film
  • The Indian scientist who is credited with the construction of radio transmitter is K.Mitra.
  • AM radio signals have carrier frequencies from 530 to 1600KHz
  • FM signals have carrier frequencies between 88 to 108MHz
  • The first landing of a space probe on the planet Mars is Mars-2
  • The first satellite Sputnik I weighed about 84 Kgs
  • The space vehicle rocket was developed by the scientists Konstantin Tsiolkovsky, Robbert Goddard, Herman Oberth
  • An object which is given an initial velocity in any direction and then allowed to travel freely under the action of gravity is called Projectile
  • The historian who used the missiles to destroy the British army was Tippu Sultan
  • The devices that escape from the earth are called Space Vehicles
  • The sophisticated remote sensing satellite placed in the polar orbit by PSLV is RESOURCESAT-1
  • The induced radioactivity was discovered in the year 1934
  • The products obtained from artificial radioactivity are called Radio-Nuclides
  • The number of neutrons released in every nuclear fission in Uranium 235 are 2 or 3
  • Two nuclei of deuterium combine together to form Tritium nucleus
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