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GK Questions: General Science(Physics) – Set 7

By
Sheerin
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Hello Aspirants. Welcome to Online General Knowledge section in Affairs cloud, which is important for all the competitive exams. We have created Some questions related to General Science(Physics) !!!

  1. Which is used to measures strength of electric current ?
    1.Ammeter
    2.Altimeter
    3.Audiometer
    4.Electrometer
    5.None of these
    Answer – 1.Ammeter
    Explanation :
    An ammeter is a measuring instrument used to measure the current in a circuit. Electric currents are measured in amperes

  2. Dynamometer is used to measures …………………………………
    1.Electricity
    2.Electric power
    3.Detects presence of electric current
    4.Blood pressure
    5.None of these
    Answer – 2.Electric power
    Explanation :
    A dynamometer or “dyno” for short, is a device for measuring force, torque, or power. For example, the power produced by an engine, motor .

  3. Which is used to measures sound under water ?
    1.Hydrometer
    2.Hygrometer
    3.Hydrophone
    4.Odometer
    5.None of these
    Answer – 3.Hydrophone
    Explanation :
    A hydrophone  is a microphone designed to be used underwater for recording or listening to underwater sound. Most hydrophones are based on a piezoelectric transducer that generates electricity when subjected to a pressure change.

  4. ……………………….. is an instrument for producing sound
    1.Microphone
    2.Photometer
    3.Periscope
    4.Phonograph
    5.None of these
    Answer – 4.Phonograph
    Explanation :
    The phonograph is a device invented in 1877 for the mechanical recording and reproduction of sound. In its later forms it is also called a gramophone

  5. Speedometer is used to ………………………….
    1.Measure the speed
    2.Record the speed
    3.display the speed
    4.All of these
    5.None of these
    Answer – 4.All of these
    Explanation :
    A speedometer or a speed meter is a gauge that measures and displays the instantaneous speed of a vehicle.

  6. ………………….. is used to obtain magnified view of small objects
    1.Microscope
    2.Microphone
    3.Telescope
    4.Endoscope
    5.None of these
    Answer – 1.Microscope
    Explanation :
    Microscope is an optical instrument used for viewing very small objects, such as mineral samples or animal or plant cells, typically magnified several hundred times.

  7. Audiometer measures …………………..
    1.Sound under water
    2.Frequency
    3.Pressure of gases
    4.Intensity of Sound
    5.None of these
    Answer – 4.Intensity of Sound
    Explanation :
    Audiometer is an instrument for gauging and recording acuity of hearing also measures the Intensity of Sound

  8. Which is used to detects presence of electric charge ?
    1.Electrometer
    2.Ammeter
    3.Electroscope
    4.Altimeter
    5.None of these
    Answer – 3.Electroscope
    Explanation :
    An electroscope is an early scientific instrument that is used to detect the presence and magnitude of electric charge on a body. It was the first electrical measuring instrument. The first electroscope, a pivoted needle called the versorium, was invented by British physician William Gilbert around 1600.

  9. Salinometer determines …………………….. of solution
    1.Salinity
    2.Purity
    3.Impurity
    4.Quantity
    5.None of these
    Answer – 1.Salinity
    Explanation :
    A salinometer is a device designed to measure the salinity, or dissolved salt content, of a solution

  10. ………………….. is used for the measurement of temperature
    1.Thermostat
    2.Thermometer
    3.Voltmeter
    4.Galvanometer
    5.None of these
    Answer – 2.Thermometer
    Explanation :
    A thermometer is a device that measures temperature or a temperature gradient. A thermometer has two important elements: (1) a temperature sensor, (2) some means of converting this physical change into a numerical value





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