Important Scientific Instruments and their Uses


Hello Readers!
In this post, we are sharing List of few important Scientific Instruments and their uses. These instruments are frequently asked in different competitive exams like Railways, SSC, Banking, PSUs etc. We hope this will be very much helpful for your upcoming competitive exams. If you find any Instrument which is not there please comment below, we will update this post with those instruments.


List Of Important Scientific Instruments:

Accumulator: Electrical energy is stored.
Altimeter: Used in aircraft for measuring altitudes.
Ammeter: Measuring the electrical current in amperes.
Anemometer: Measuring the strength of winds.
Audiometer: Measuring the intensity of the wind.
Audio phone: It is used for improving the imperfect sense of hearing.
Barometer: Measuring atmospheric pressure.
Binocular: An optical instrument designed for a magnified view of distant 
objects by both eyes simultaneously.
Cardiogram: For recording the heart movements.
Calorimeter: Measuring of quantities of heat.
Chronometer: A clock that keeps very accurate time as the one that is used 
to determine longitude at sea.
Colourimeter: An instrument for comparing intensities of colour.
Commutator: An instrument to change or remove the direction of an electric current, in dynamo used to convert alternating current into direct current.
Cyclotron: Studying the properties of atoms by smashing them.
Dynamo: A device for converting mechanical energy into electrical energy.
Dynamometer: An instrument for measuring electrical power.
Electroscope: An instrument for detecting the presence of electric charge.
Galvanometer: For detecting and measuring electric current.
Phonograph: For reproducing sound.
Quartz Clock: A highly accurate clock used in astronomical observations and other precision work
Radar: Radio, angle, detection and range is used to detect the direction and 
range of an approaching aeroplane by means of radio microwaves.
Radiometer: An instrument for measuring the emission of radiant energy
Radio Micrometer: An instrument for measuring heat radiations
Rain Gauge: An instrument for measuring rainfall
Rectifier: An instrument used for the conversion of AC into DC.
Refractometer: An instrument used to measure the refractive index of a substance
Resistance Thermometer: Used for determining the electrical resistance of conductors
Salinometer: A type of hydrometer used to determine the concentration of salt solutions by measuring their densities
Seismometer (Seismograph): An Apparatus for measuring and recording earthquake shock
Sextant: For guiding ships or surveying land.
Spectroscopy: An instrument used for spectrum analysis
Speedometer: It registers the speed at which the vehicle is moving
Spherometer: For measuring the curvature of surfaces
Sphygmomanometer: An instrument used to detect blood pressure in the human body. It is also called B.P.Apparatus
Sphygmophone: Instrument with the help of which, a pulse beat makes a sound
Spring Balance: Useful for measuring weight.
Stereoscope: It is used to view two-dimensional pictures.
Stethoscope: An instrument which is used by the doctors to hear and analyze heart and lung sounds.
Stroboscope: It is used to view rapidly moving objects.
Tachometer: An instrument used in measuring speeds of aeroplanes and motor boats.
Teleprinter: This instrument receives and sends typed messages from one place to another.
Telescope: It views distant objects in space.
Theodolite: It measures horizontal and vertical angles.
Transistor: A small device which may be used to amplify currents and perform other functions usually performed by a thermionic valve.
Vernier: An adjustable scale for measuring small subdivisions of scale.
Viscometer: For measuring viscosity.
Voltmeter: To measure the potential difference between two points.

Energy Transformed
Mechanical energy into electrical energy.
Chemical energy into light & heat energy.
Sound energy into electrical energy.
Loud Speaker
Electrical energy into sound energy.
Solar Cell
Solar energy into electrical  energy.
Tube light
Electrical energy into light energy.
Electric Bulb
Electrical energy into light & heat energy.
Chemical energy into electrical energy.
Electric motor
Electrical energy into mechanical energy.
Mechanical energy into Sound energy.

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