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You Are On Question Answer Bank SET 2005

100251. Who is known as Father of electricity?

Answer: Michael Faraday

100252. Law of electrolysis was propounded by?

Answer: Michael Faraday

100253. Concept of electric field was put forward by?

Answer: Michael Faraday

100254. Who Invented Dynamo?

Answer: Michael Faraday

100255. Who discovered Electromagnetic induction?

Answer: Michael Faraday

100256. Odometer:?

Answer: is an instrument by virtue of which the distance covered by wheeled vehicles is recorded.

100257. .....is usually used by the crew of a submarine to survey the ships etc, on the surface of the sea while the submarine is under water. It also enables the sailors to observe objects on the other side of an obstacle without exposing themselves..?

Answer: Periscope

100258. .....is an instrument used for reproducing sound.?

Answer: Phonograph

100259. .....is an apparatus used to compare the illuminating power of two sources of light.?

Answer: Photometer

100260. .....is a glass tube with the aid of which a definite volume of liquid may be transferred.?

Answer: Pipette

100261. .....is used for comparing the e.m.f.s, of cells, measurements of the thermal e.m.f.s, large potential differences and currents. It is also used for measuring low resistances.?

Answer: Potentiometer

100262. .....is an instrument for measurement of the humidity of the atmosphere.?

Answer: Psychrometer

100263. .....is an instrument for recording high temperatures from a great distance (i.e., for recording temperature of the sun etc.) by making use of the laws of radiation.?

Answer: Pyrometer

100264. ..... is used to detect the direction and range of an approaching aeroplane by means of radio microwaves.?

Answer: Radar

100265. .....is an apparatus for recording of rainfall at a particular place.?

Answer: Rain Gauge

100266. .....is an instrument for measuring the emission of radiant energy.?

Answer: Radiometer

100267. .....is an instrument to measure refractive indices.?

Answer: Refractometer

100268. .....is an instrument for determining the amount of sugar in a solution. It is used in breweries.?

Answer: Saccharimeter

100269. .....is an instrument used for recording earthquake shocks.?

Answer: Seismometer or Seismograph

100270. .....is an instrument invented by John Hadley used for measuring the altitude of the sun and of other inaccessible heavenly bodies.?

Answer: Sextant

100271. .....is a type of spectroscope suitable for the precise measurements of refractive indices. & An instrument for measuring the energy distribution of a particular type of radiation.?

Answer: Spectrometer

100272. .....is an instrument which indicates speed at which a vehicle is moving.?

Answer: Speedometer

100273. .....is an instrument for measuring curvature of surfaces.?

Answer: Spherometer

100274. .....is an instrument used for measuring arterial blood-pressure.?

Answer: Sphygmomanometer

100275. .....is an instrument, with the help of which a pulse beat makes a sound.?

Answer: Sphygmophone

100276. .....is an instrument, by virtue of which, arterial pulsations become visible.?

Answer: Sphygmoscope

100277. .....is a special type of binocular, through which a double photograph snapped from two different angles by a two-lensed camera is viewed in solid relief.?

Answer: Stereoscope

100278. .....is an instrument to hear and analyse movements of heart and lungs.?

Answer: Stethoscope

100279. .....is an instrument for recording small intervals of time in the laboratory, in races and other events.?

Answer: Stop watch

100280. .....is an instrument for viewing objects moving rapidly with a periodic motion and to see them as if they were at rest.?

Answer: Stroboscope

100281. .....is an instrument for determining speeds of aeroplanes and motor boats.?

Answer: Tachometer

100282. .....an instrument which prints automatically messages sent from one place to another, on telegraph lines.?

Answer: Telephone

100283. .....is a device by virtue of which two persons at two different places can communicate. It consists of two main parts (i) a microphone and (ii) a receiver.?

Answer: Teleprinter

100284. .....is an apparatus used for observing distant objects.?

Answer: Telescope

100285. .....is an instrument for measuring horizontal and vertical angles.?

Answer: Theodolite

100286. .....is an instrument based on thermo-electricity used for measuring temperatures.?

Answer: Thermocouple

100287. .....is an apparatus used for measuring temperature.?

Answer: Thermometer

100288. .....is an instrument used to regulate the temperature to a particular degree.?

Answer: Thermostat

100289. .....is an instrument to measure viscosity.?

Answer: Viscometer

100290. What is the unit of potential difference?

Answer: Volt

100291. സിനിമ ആക്കിയ ആദ്യ സാഹിത്യ കൃതി [Sinima aakkiya aadya saahithya kruthi]

Answer: മാർത്താണ്ടവർമ(1933) [Maartthaandavarma(1933)]

100292. Knot is used for measuring?

Answer: Speed of ships

100293. Unit of work?

Answer: Joule

100294. Unit of viscosity of fluid?

Answer: Poise

100295. Decibel is the unit for measuring the intensity of?

Answer: Sound

100296. What is the S.I. unit of pressure?

Answer: Pascal

100297. One angstrom is equal to?

Answer: 10-10m

100298. How many Pascal is the atmospheric pressure?

Answer: 105 Pascal

100299. What is the S.I. unit of magnetic field strength?

Answer: Ampere per metre

100300. Which is the smallest unit of distance used in Nuclear Physics?

Answer: Fermi
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