Important Scientific Instruments and their usage
Important 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.
PSC Questions about Football are given below:.
2014 ലോകകപ്പ് വിജയി ? ജർമനി .
2022 ലെ ലോകകപ്പ് നടക്കുന്ന രാജ്യം ? ഖത്തർ.
88 വർഷത്തിനിടെ എത്ര രാജ്യങ്ങൾ ലോകകപ്പ് ചാമ്പ്യൻമാരായിട്ടുണ്ട് ? 8.
ആദ്യ ലോകകപ്പ് മത്സരത്തിൽ പങ്കെടുത്ത രാജ്യങ്ങൾ ? 13.
ആദ്യ ലോകകപ്പ് റണ്ണറപ്പ് ? അർജന്റീന.
ആദ്യ ലോകകപ്പ് വിജയി ? യുറഗ്വായ് ? 1930.
ആദ്യ ലോകകപ്പ് വേദി ? യുറഗ്വായ്.
ആദ്യ വനിത ലോകകപ്പ് നടന്ന വർഷം ? 1991.
ആധുനിക...
വട്ടമേശസമ്മേളനങ്ങൾ .
ഭരണഘടനാപരമായ പരിഷ്കരണങ്ങൾ ചർച്ച ചെയ്യുന്നതിനായി 1930 മുതൽ 1932 വരെയുള്ള കാലയളവിൽ ഇന്ത്യൻ നാഷണൽ കോൺഗ്രസിനെ കൂടി ചേർത്തുകൊണ്ട് ബ്രിട്ടീഷ് സർക്കാർ നടത്തിയ സമ്മേളനങ്ങളാണ് വട്ടമേശ സമ്മേളനങ്ങൾ. 930 നവംബറിൽ ആരംഭിച്ച വട്ടമേശ സമ്മേളനങ്ങൾ 1932 ഡിസംബറിൽ അവസാനിച്ചു. മുഹമ്മദലി ജിന്ന, അന്നത്തെ വൈസ്രോയിയായിരുന്ന ഇർവിൻ പ്രരഭുവിനോടും പ്രധാനമന്ത്രി റംസെ മക്ഡൊ...
2014 .
Jan Dhan Yojana.
Make in India.
Swachh Bharat Abhiyan.
Sansad Adarsh Gram Yojana.
2015 .
Beti Bachao, Beti Padhao.
MUDRA Bank.
AMRUT Mission.
Housing for All 2022.
Digital India.
One Rank, One Pension.
2016 .
Startup India, Standup India.
Unified Payment Interface (UPI).
Pradhanmantri Ujjwala Yojana.
UDAN Yojana.
Demonetization/ Cashless India.
2017 .
Prawasi Kaushal Vikas Yojana.
...
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