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) !!!
- Which is used to measures strength of electric current ?
1.Ammeter
2.Altimeter
3.Audiometer
4.Electrometer
5.None of these
Answer & Explanation
Answer – 1.Ammeter
Explanation :
An ammeter is a measuring instrument used to measure the current in a circuit. Electric currents are measured in amperes
- Dynamometer is used to measures …………………………………
1.Electricity
2.Electric power
3.Detects presence of electric current
4.Blood pressure
5.None of these
Answer & Explanation
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 .
- Which is used to measures sound under water ?
1.Hydrometer
2.Hygrometer
3.Hydrophone
4.Odometer
5.None of these
Answer & Explanation
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.
- ……………………….. is an instrument for producing sound
1.Microphone
2.Photometer
3.Periscope
4.Phonograph
5.None of these
Answer & Explanation
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
- 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 & Explanation
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.
- ………………….. is used to obtain magnified view of small objects
1.Microscope
2.Microphone
3.Telescope
4.Endoscope
5.None of these
Answer & Explanation
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.
- Audiometer measures …………………..
1.Sound under water
2.Frequency
3.Pressure of gases
4.Intensity of Sound
5.None of these
Answer & Explanation
Answer – 4.Intensity of Sound
Explanation :
Audiometer is an instrument for gauging and recording acuity of hearing also measures the Intensity of Sound
- Which is used to detects presence of electric charge ?
1.Electrometer
2.Ammeter
3.Electroscope
4.Altimeter
5.None of these
Answer & Explanation
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.
- Salinometer determines …………………….. of solution
1.Salinity
2.Purity
3.Impurity
4.Quantity
5.None of these
Answer & Explanation
Answer – 1.Salinity
Explanation :
A salinometer is a device designed to measure the salinity, or dissolved salt content, of a solution
- ………………….. is used for the measurement of temperature
1.Thermostat
2.Thermometer
3.Voltmeter
4.Galvanometer
5.None of these
Answer & Explanation
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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