Important Scientific Instruments and their usage Important Scientific Instruments and their usage


Important Scientific Instruments and their usageImportant Scientific Instruments and their usage



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  • Accumulator : It is used to store electrical energy
  • Altimeter : It measures altitudes and is used in aircraft.
  • Ammeter : It measures strength of electric current (in amperes).
  • Anemometer : It measures force and velocity of the wind.
  • Audiometer : It measures the intensity of sound.
  • Audiphones : It is used for improving the imperfect sense of hearing.
  • Barograph : It is used for continuous recording of atmospheric pressure.
  • Barometer : It measures atmospheric pressure.
  • Binocular : It is used to view distant objects
  • Bolometer : It measures heat radiation
  • Calorimeter : It measures the quantity of heat.
  • Carburettor : It is used in an internal combustion engine for charging the air with petrol vapor.
  • Cardiogram : It traces movements of the heart, recorded on a cardiograph.
  • Chronometer : It determines the longitude of a place kept the onboard ship.
  • Cinematography : It is an instrument used in cinema making to throw on screen and enlarged image of the photograph.
  • Colorimeter : An instrument for comparing intensities of color.
  • Commutator : An instrument to change or remove the direction of an electric current, in dynamo used to convert alternating current into direct current.
  • Cresco graph : It measures the growth in plants.
  • Cyclotron : A charged particle accelerator which can accelerate charged particles to high energies.
  • Dynamo : It converts mechanical energy into electrical energy
  • Dynamometer : It measures force, torque, and power
  • Electroscope : It detects the presence of an electric charge.
  • 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.
  • Galvanometer : It measures the electric current of low magnitude.
  • Hydrometer : It measures the specific gravity of liquids.
  • Hydrophone : It measures sound under water.
  • Hygrometer : It measures humidity in the air.
  • Kymograph : It graphically records physiological movements (Blood pressure and heartbeat).
  • 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 the magnified view of small objects.
  • Odometer : An instrument by which the distance covered by wheeled vehicles is measured.
  • Periscope : It is used to view objects above sea level (used in submarines)
  • Phonograph : An instrument for producing sound.
  • Photometer : The instrument compares the luminous intensity of the source of light
  • Potentiometer : It is used for comparing electromotive force of cells.
  • Pyrometer : It measures very high temperature.
  • 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 airplane by means of radio microwaves
  • Radiometer : It measures the emission of radiant energy.
  • Rain Gauge : An apparatus for recording rainfall at a particular place.
  • Rectifier : An instrument used for the conversion of AC into DC.
  • Refractometer : It measures refractive index.
  • Saccharimeter : It measures the amount of sugar in the solution.
  • Salinometer : It determines the salinity of solution.
  • Seismograph : It measures the intensity of earthquake shocks.
  • Sextant : This is used by navigators to find the latitude of a place by measuring the elevation above the horizon of the sun or another star.
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Diseases And Their Nicknames

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Diseases And Their Nicknames are given below.

ആന്ത്രാക്സ് ഈജിപ്തിലെ അഞ്ചാം പ്ലേഗ് .
എലിപ്പനി വീല്‍സ് ഡിസീസ് .
കണ്‍ജക്ടിവിറ്റിസ് പിങ്ക് ഐ .
കുഷ്ഠം ഹാന്‍സെന്‍സ് ഡിസീസ് .
ക്ഷയം വൈറ്റ് പ്ലേഗ് .
ഗോയിറ്റര്‍ ഗ്രേവ്സ് ഡിസീസ് .
ചിക്കന്‍പോക്സ് വരിസെല്ല .
ജര്‍മ്മന്‍ മിസീല്‍സ് റൂബെല്ല .
ടൂബര്‍ക്കുലോസിസ് കോക്ക്സ് ഡിസീസ് .
ടെറ്റനസ് ലോക് ജാ കുതിര സന്നി .
ഡെങ്കിപ്...

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Dadasaheb Phalke Award Winners

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Awards Year Winner Occupation .
64th 2016 Kasinadhuni Viswanath Filmmaker , Actor .
63rd 2015 Manoj Kumar Actor , Director .
62nd 2014 Shashi Kapoor Actor, Director , Producer .
61st 2013 Gulzar Poet, Lyricist , Director .
60th 2012 Pran Actor .
59th 2011 Soumitra Chatterjee Actor .
58th 2010 K. Balach , er Director .
57th 2009 D. Ramanaidu Producer .
56th 2008 VK Murthy Cinematographer .
55th 2007 Manna Dey Singer .
54th 2006 Tapan Sinha Director .
53rd 2005 Shyam Benegal Director .
52nd 2004 Adoor Gopalakrishnan Director .
51st 2003 Mrinal Sen Director .
50th 2002 Dev An , Actor, Director , Producer .
49th 2001 Yash Chopra Director , Producer .
48th 2000 Asha Bhosle Singer .
47th 1999 Hrishikesh Mukherjee Director .
46th 1998 B.R. Chopra Director , Produce...

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Goods and Service Tax (GST) launched on 30th June from midnight. GST is the biggest tax reform in India and can be beneficial for the Indian Economy. According to the Govt. of India, the GST must help India to fight against corruption and black money. It is a ‘Good and Simple’ tool through which the people of every sector of India including the poor can get benefited. Goods and Services Tax (GST) is an indirect tax (or consumption tax) used in India on the supply of goods and services. It is a comprehensive, multistage, destination-based tax: comprehensive because it has subsumed almost all the indirect taxes except a few state taxes. .

Multi-staged as it is, the GST is imposed at every step in the production process but is meant to be refunded to all parties in the various stages of production other than the final consumer and as a destination-based tax, it is collected from point of consumption and not point of origin like previous taxes.

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