General Science Questions Practice Question and Answer

Q:

What principle does the publisher fibre work on? 

1778 2

  • 1
    Total internal reflection
    Correct
    Wrong
  • 2
    Interference
    Correct
    Wrong
  • 3
    Scattering
    Correct
    Wrong
  • 4
    Diffraction
    Correct
    Wrong
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Answer : 1. "Total internal reflection "

Q:

The principle of 'black hole' was enunciated 

1766 0

  • 1
    C . V. By Raman
    Correct
    Wrong
  • 2
    H . J. Bhabha
    Correct
    Wrong
  • 3
    S . Chandrasekhar by
    Correct
    Wrong
  • 4
    H. Khurana by
    Correct
    Wrong
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Answer : 3. "S . Chandrasekhar by "

Q:

The maximum number of electrons on a principal shell is–

1760 0

  • 1
    Correct
    Wrong
  • 2
    n
    Correct
    Wrong
  • 3
    2n²
    Correct
    Wrong
  • 4
    3n²
    Correct
    Wrong
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Answer : 3. "2n²"

Q:

Solar cells work on the principle of 

1759 0

  • 1
    Photovoltaic effect
    Correct
    Wrong
  • 2
    photoelectric effect
    Correct
    Wrong
  • 3
    photoconductive effect
    Correct
    Wrong
  • 4
    photosynthesis
    Correct
    Wrong
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Answer : 1. "Photovoltaic effect "

Q:

The force that a neutron exerts on a proton inside an atom is:

1758 0

  • 1
    Nuclear force
    Correct
    Wrong
  • 2
    Gravitational force
    Correct
    Wrong
  • 3
    Tidal force
    Correct
    Wrong
  • 4
    Electrostatic force
    Correct
    Wrong
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Answer : 1. "Nuclear force"

Q:

Capacity when connecting capacitors to series?

1744 1

  • 1
    neither increases nor decreases
    Correct
    Wrong
  • 2
    increases
    Correct
    Wrong
  • 3
    decreases
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 2. "increases"
Explanation :

A capacitor stores energy in the form of an electrostatic field between its plates. Increasing the size of the plates increases the capacitance because there is more room for the electrons to escape.

Q:

Which of the following was the first B vitamin discovered in 1897?

1740 0

  • 1
    Folate 
    Correct
    Wrong
  • 2
    Biotin 
    Correct
    Wrong
  • 3
    Riboflavin 
    Correct
    Wrong
  • 4
    Thiamine
    Correct
    Wrong
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Answer : 4. "Thiamine"
Explanation :

1. The first vitamin discovered in 1897 was thiamine, also known as vitamin B1.

2. Thiamine was discovered by Dutch physician Christiaan Eijkman.

3. Vitamin B1 helps body cells convert carbohydrates into energy and maintain proper functioning of the heart, muscles and digestive system.

Q:

From which of the following can Ethanol be obtained?

1740 0

  • 1
    Rice
    Correct
    Wrong
  • 2
    Sunflower
    Correct
    Wrong
  • 3
    Sugarcane
    Correct
    Wrong
  • 4
    Petrol
    Correct
    Wrong
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Answer : 3. "Sugarcane "

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