General Awareness-Physics Notes-Applied Physics & Basic Physics-Part 2

General Awareness - Online Physics Notes - Basic Physics and Applied Physics - Part II

  • Sun Rising and setting appears to be red due to scattering of just particle and air molecules.
  • Secondary Rainbow is formed due to total internal reflection.
  • Kirchoff's law: Emission and absorption of light by a substances.
  • Electromagnetic theory of light: Maxwell.
  • Quantum theory: Max Plank.
  • Wave theory of light: Hygens.
  • Colder part surrounded by sun: Chromosphere.
  • Central part of the Sun: Photosphere.
  • Brewster's Law: Polarisation of light.
  • Colour of thin films: Interference.
  • Band spectrum is produced by H2
  • Red colour has the largest wave length.
  • Dispersion of light was discovered by Newton.
  • Blue colour has the smallest wave length.
  • Due to total internal reflection the soap bubble shines.
  • Due to Refraction the clear water well appears less deep.
  • The number of images of an object placed between two parallel mirror is infinite.
  • The unit of power of a lens is dioptre.
  • Light waves are transverse.
  • The unit of brightness is lambert.
  • The coin the water appears to be risen is due to refraction.
  • The stick in the water appears to be bent due to refraction.
  • Presbyopia: Person should use convex lens.
  • Rainbow: Total internal Reflection & Refraction.
  • Zoom lens is a compound lens.
  • The unit of luminous flux: Lumen.
  • The picture in the television is 30 times per second.
  • The concept of positive and negative charge was discovered by Benjamin Franklin.
  • Charge of electron: e = 1.6021917 x 10-19
  • Unit of potential difference is volt.
  • Unit of resistance is ohm residential.
  • Electrification is parallel connections.
  • Fleming's left hand rule Electric Motor.
  • Fleming's right hand rule Electric generator.
  • Faraday's law - Electromagnetic induction.
  • Lenz's law: Direction of induced current.
  • Thumb rule: Direction of North pole of a needle.
  • Ampere's swimming rule: Direction of deflection
  • Maxewell cork Saew rule: Direction of magnetic lines of force.
  • Gold leaf Electroscope - To defect the presence of electric charge of a body.
  • Nucleus: Protons + Neutrons
  • Radius of the nucleus is 10-14m.
  • Atomic number: Number of protons in the nucleus.
  • Nucleons: Either a neutron (or) a proton.
  • Avogadro constant: N=6.023X1023 /mole.
  • Boltzmann constant: K= 1.38 x 10-23Jule/Ko
  • Elementary charge: E= 1.60 X 10-19 coulomb
  • Faraday Constant Gravitational: F=9.65x104cou/mole
  • Constant: G=6.67x 1O-11m2/kg2
  • Permittivity constant: E=8.85x 10-12 fraud/mts.
  • Electron charge: e/me=1.76x1011 coulomb/kg
  • Electron rest mass: Me=9.11 x 10-31 kg
  • Speed of light: C=3.00X108 meter/Sec
  • Proton vest mass: m= 1.67239 x 10-27 kg
  • Stefan Boltzmann Constant: σ =5.67X10-8 wart/met2
  • Latent heat of fusion of ice in SI: -3.36X105 jkg-1
  • One micron:  10-6m
  • Density : Gold = 19.103 kg/m3, Ice = 0.9X103 kg/m3, Iron=7.8X103 kg/m3, Mercury=13.6X103 kg/m3, Water=1X103 kg/m3.
  • Anatomy: Science of animal body structure.
  • Archaeology: Study of ancient civilisations from the ruins of old buildings and monuments.
  • Astrology: Art of prediction by analysing the effect of heavenly bodies upon the destiny of man.
  • Astronomy: Science of the heavenly bodies. It is the Scientific study of the magnitude, motion, relative positions and all connected phenomena of heavenly bodies. 
  • Acoustics: The Science of sound, transmission, its production and its effects . 
  • Astrophysics: A branch of astronomy concerned with the Physical nature and composition of stars. 
  • Biochemistry: The study of the chemical or physicochemical processes and products involved in the life phenomena of plants and animals.
  • Cosmography: Description, mapping of general features of the Universe or earth. 
  • Entomology: Study of insects.
  • Embryology: Science of the womb.
  • Etymology: Part of linguistic science concerned with facts relating to formation and meaning of words. 
  • Gynaecology : The branch of medicine that is concerned with the diseases singular to women, specially of the genital tract and its structure and glands concerned with it. 
  • Genetics: The study of heredity of individuals.
  • Geophysics: Science dealing with the properties of matter and energy which. brings about changes in the earth's surface. 
  • Geology: Science of earth's crust, its strata and their relations and changes. 
  • Horticulture: Art of garden cultivation.
  • Hydropathy : Medical treatment by external and internal application of water.
  • Hydroponics: Study of raising of plants on water, without the help of soil.
  • Hydrodynamics: Scientific study of the forces exerted by liquids.
  • Hello therapy: Use of sun-baths in healing diseases.
  • Hydrography: Scientific study of the water bodies of the earth.
  • Hydroponics: Detection of sound under water. 
  • Metallurgy: The branch of science dealing with the method of extraction of metals from their ores & preparation of alloys. 
  • Meteorology: Science of weather and climate. 
  • Mycology: Study of fungi.
  • Numismatics: Study of coins or coinage.
  • Ornithology: Scientific study of birds.
  • Pathology: Science of bodily diseases.
  • Paleobotany: Science of the fossils of plants.
  • Physiography: The study of the physical features of the earth, their causes and their relation to one another. 
  • Phycology : Science of dealing with the study of human mind.
  • Pisciculture : Art of rearing fish.
  • Radiology: Science of conversion of radiant energy into mechanical force.
  • Seismology: Scientific study regarding earthquakes.
  • Sericulture: Study of silk worm breeding. 
  • Toxicology: The science that treats the origin, nature, properties, and effects of poisons, of their detections in the organs and tissues, and of the treatment of diseases due to poisoning. 
  • Astronomical: 93,000,000 miles. 
  • Decibel: Unit of relative loudness. 1 decibel is the minimum amount of change detectable by the human ear. 
  • Hertz : Modern unit for measurement of electromagnetic wave frequencies (equivalent to "Cycles per second"). 
  • Horse power: The amount of power needed to lift 33,000 pounds a distance of one foot in 1 minute.
  • Light year: 5,880,000,000,000 miles or the distance that light travels in a year at the rate of 186,281.7 miles per second. (It an astronomical unit were represented by one inch a light year would be presented by about one mile). Used for astronomical measurements.
  • Ohm: Unit of electrical resistance. A resistance of one ohm in the circuit with a potential difference of one volt produces a current of one ampere. 
  • Quintal: 1000,000 grams or 220.46 pounds avoirdupois. 
  • Roentgen: Dosage unit of radiation exposure produced by X-rays.
  • Angstrom : An instrument used for measuring the length of light waves. 
  • Carat: 200 milligrams or 3.0088 grains troy. Used for weighing precious stones. Also a measure of the purity of gold alloy. 
  • Fathom (faith) : 6 feet or 1.8288 m. Derived from the distance to which a man can stretch his arms used for measuring cables and depths of water. 
  • Knot: The rate of speed of one nautical mile per hour. Used for measuring the speed of ship. 
  • Micron : 0.001 millimeter. Used for scientific measurement. 
  • Quire : Used for measuring paper. Sometimes a quire amounts to 24 sheets but more often 25; 20 quires constitute a ream. 
  • Acre: An area of 43000 square feet. Originally the area a yoke of oxen could plough in one day. 
  • Ampere: Unit of electric current. A potential difference of 1 volt across a resistance of one ohm produces a current of one ampere. 
  • Click for Part I
Posted by - Blog Author: 5:18 PM Last Updated at: 5:18 PM

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