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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അഗതികളുടെ അമ്മ മദർ തെരേസ .
ആധുനി ഇന്ത്യയുടെ ശില്പി ഡൽഹൗസി .
ഇന്ത്യയുടെ വാനമ്പാടി സരോജിനി നായ്ഡു .
കവി രാജ സമുദ്ര ഗുപ്തൻ .
കേരള അശോകൻ വിക്രമാദിത്യ വരഗുണൻ .
കേരള പാണിനി എ ആർ രാജരാജവർമ്മ .
കേരള മോപ്പസാങ് തകഴി ശിവശങ്കര പിളള .
കേരള വാല്മീകി വളളത്തോൾ .
കേരള സിംഹം പഴശ്ശി രാജ .
കേരള സ്കോട്ട് സി വി രാമൻപിളള .
കേരള ഹെമിംങവേ എം ടി വാസുദേവൻ നായർ . LI...

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Port Numbers In Computer Networks

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A port is an endpoint of communication in an operating system. While the term is also used for female connectors on hardware devices, in software it is a logical construct that identifies a specific process or a type of network service.

When referring to a network or to the Internet, a software or network port is a location where information is sent. For example, port 80 is the HTTP network port. A listing of commonly known and used ports can also be found on the below listing.

18 – MSP (Message Send Protocol).
20 - FTP (File Transfer Protocol) for data transfer.
21 – FTP (File Transfer Protocol) for data control.
23 – Telnet.
22 – SSH - Remote Login Protocol.
25 - SMTP (Simple Mail Transfer Protocol) for is used for sending mails.
53 – DNS (Domain Name System).
67 – DHCP (Dynamic Host Configuration Protocol) for sending data to the server – Bootps.
68 ...

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Memorial Places of Famous Indian Leaders

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ഇൻഡ്യയിലെ പ്രധാനപ്പെട്ട സമാധി സ്ഥലങ്ങൾ .

അംബേദ്കർ ചൈത്യഭൂമി .
ഇന്ദിരാഗാന്ധി ശക്തിസ്ഥൽ .
കിഷൻകാന്ത് നിഗംബോധ ഘട്ട് .
കെ.ആർ. നാരായണൻ ഉദയഭൂമി .
ഗാന്ധിജി രാജ്ഘട്ട് .
ഗുൽസാരിലാൽ നന്ദ നാരായൺ ഘട്ട് .
ഗ്യാനി സെയിൽസിങ്,ശങ്കർ ദയാൽ ശർമ്മ ഏകതാസ്ഥൽ .
ചരൺസിങ് കിസാൻഘട്ട് .
ജഗ്ജീവൻ റാം സമതാസ്ഥൽ .
നരസിംഹറാവു ബുദ്ധപൂർണിമ പാർക്ക് .
നെഹ്റു, സഞ...

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