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.