GK Questions: General Science(Physics) – Set 9

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1. Electrometer measures ………………………
   1.Electric current of high magnitude
   2.Electric current of low magnitude
   3.Electricity
   4.electric power
   5.None of these
   
   Answer & Explanation

   Answer – 3.Electricity
   Explanation :
   An electrometer is an electrical instrument for measuring electric charge or electrical potential difference.
   
   
   
2. Which of the following is used to view the objects above the sea level ?
   1.Stroboscope
   2.Microscope
   3.Telesope
   4.Periscope
   5.None of these
   
   Answer & Explanation

   Answer – 4.Periscope
   Explanation :
   Periscope is used to view the objects above the sea level
   
   
   
3. Stereoscope used to view the …………………… pictures
   1.1 dimensional
   2.2 dimensional
   3.3 dimensional
   4.All of these
   5.None of these
   
   Answer & Explanation

   Answer – 2.2 dimensional
   Explanation :
   Stereoscope is a device by which two photographs of the same object taken at slightly different angles are viewed together, creating an impression of depth and solidity.
   
   
   
4. ………………………….. is an instrument for measuring the energy distribution of particular type of radiation
   1.Spectrometer
   2.Speedometer
   3.Tachometer
   4.Telescope
   5.None of these
   
   Answer & Explanation

   Answer – 1.Spectrometer
   Explanation :
   Spectrometer is an instrument for measuring the energy distribution of particular type of radiation.An apparatus used for recording and measuring spectra, especially as a method of analysis.
   
   
   
5. Udometer is also known as …………….
   1.Rain Gauge
   2.Anombrometer
   3.Pluviometer
   4.All of these
   5.None of these
   
   Answer & Explanation

   Answer – 4.All of these
   Explanation :
   A rain gauge (also known as an udometer, pluviometer, or an ombrometer) is a type of instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period of time.
   
   
   
6. Which of the following is used to view rapidly moving objects ?
   1.Stroboscope
   2.Stereoscope
   3.Telescope
   4.Microscope
   5.None of these
   
   Answer & Explanation

   Answer – 1.Stroboscope
   Explanation :
   A stroboscope also known as a strobe, is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary. It consists of either a rotating disk with slots or holes or a lamp such as a flashtube which produces brief repetitive flashes of light.
   
   
   
7. Which of the following has the highest specific heat Capacity ?
   1.Glycerne
   2.Water
   3.Ice
   4.Parafin
   5.None of these
   
   Answer & Explanation

   Answer – 2.Water
   Explanation :
   Specific heat Capacity of Water is  2200 J/Kg^oC, Paraffin – 2200 J/Kg^oC, Ice – 2108 J/Kg^oC, Glycerine – 2436 J/Kg^oC
   
   
   
8. …………………… is the boiling point of Water in Rankine Scale ?
   1.275⁰
   2.100⁰
   3.672⁰
   4.510⁰
   5.None of these
   
   Answer & Explanation

   Answer – 3.672⁰
   Explanation :
   The boiling point of Water in Ranking Scale is 672⁰
   Rankine temperature scale, temperature scale having an absolute zero, below which temperatures do not exist, and using a degree of the same size as that used by the Fahrenheit temperature scale.
   
   
   
9. What is the nearest distance of distinct vision for the human eye in cm ?
   1.25
   2.20
   3.15
   4.12
   5.None of these
   
   Answer & Explanation

   Answer – 1.25
   Explanation :
   This distance is about 25 cm from the eye.
   
   
   
10. …………………….. is the temperature at which the Celsius and the Fahrenheit readings are numerically equal but opposite in signs ?
    1.80⁰/7
    2.78⁰/6
    3.54⁰/2
    4.86⁰/6
    5.None of these
    
    Answer & Explanation

    Answer – 1.80⁰/7
    Explanation :
    X⁰ F = – X⁰ C
    X – 32/9 = -x/5
    X = 80/7