Tuesday, 31 January 2017

Scientific Instrument and its uses for competitive exam | Science | Physics

  Scientific Instrument and its Uses

  • Rain Gauge: An apparatus for recording rainfall at a particular place.
  • Radiometer: It measures the emission of radiant energy.
  • Refractometer: It measures· refractive index.
  • Cyclotron: A charged particle accelerator which can accelerate charged particles to high energies.
  • Dynamo: It converts mechanical energy into electrical energy.
  • Dynamometer: It measures electric power
  • Electrometer: It measure electricity
  • Hygrometer: It measures humidity in air.
  • Hydrophone: It measures sound under water.
  • Electroscope: It detects presence of an electric charge.
  • Galvanometer: It measures the electric current of low magnitude.
  • Hydrometer: It measures the specific gravity of liquids.
  • Potentiometer: It is used for comparing electromotive force of cells.
  • Pyrometer: It measures very high temperature.
  • Cinematography: It is an instrument used in cinema making to throw on screen and enlarged image of photograph.
  • Crescograph: It measures the growth in plants.
  • Kymograph: It graphically records physiological movements (Blood pressure and heart beat).
  • Lactometer: It determines the purity of milk.
  • Manometer: It measures the pressure of gases.
  • Mariner’s compass: It is an instrument used by the sailors to determine the direction.
  • Microphone: It converts the sound waves into electrical vibrations and to magnify the sound.
  • Microscope: It is used to obtain magnified view of small objects.
  • Odometer: An instrument by which the distance covered by wheeled vehicles is measured.
  • Phonograph: An instrument for producing sound.
  • Radar: It is used for detecting the direction and range of an approaching plane by means of radio microwaves.
  • Saccharimeter: It measures the amount of sugar in the solution.
  • Photometer: The instrument compares the luminous intensity of the source of light
  • Periscope: It is used to view objects above sea level (used in sub-marines).
  • Endoscope: It examines internal parts of the body.
  • Eudiometer: A glass tube for measuring volume changes in chemical reactions between gases.
  • Fathometer: It measures the depth of the ocean.

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