Physics Practice Question and Answer

Q:

Which one of the following SI unit is not correctly matched? 

2271 0

  • 1
    Mass-Kg
    Correct
    Wrong
  • 2
    Pressure–Dyne
    Correct
    Wrong
  • 3
    Work-Joule
    Correct
    Wrong
  • 4
    Force-Newton
    Correct
    Wrong
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Answer : 2. "Pressure–Dyne"

Q:

Principle of fuse is – 

983 0

  • 1
    Heating effect of electricity
    Correct
    Wrong
  • 2
    Magnetic effect of electricity
    Correct
    Wrong
  • 3
    Chemical effect of electricity
    Correct
    Wrong
  • 4
    Mechanical effect of electricity
    Correct
    Wrong
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Answer : 1. "Heating effect of electricity "

Q:

The velocity of sound in air is approx.

1351 1

  • 1
    340 m / s
    Correct
    Wrong
  • 2
    330 m / s
    Correct
    Wrong
  • 3
    110 m / s
    Correct
    Wrong
  • 4
    232 m / s
    Correct
    Wrong
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Answer : 2. "330 m / s"

Q:

Ice is packed in sawdust because___

1653 0

  • 1
    Sawdust does not stick to the ice
    Correct
    Wrong
  • 2
    Sawdust will not get melt easily
    Correct
    Wrong
  • 3
    Sawdust is a good conductor of heat
    Correct
    Wrong
  • 4
    Sawdust is a poor conductor of heat
    Correct
    Wrong
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Answer : 4. "Sawdust is a poor conductor of heat"

Q:

Who invented electromagnetic theory? 

1192 0

  • 1
    Thomas Alva addition
    Correct
    Wrong
  • 2
    J. J. Thomson
    Correct
    Wrong
  • 3
    Michael Faraday
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 3. "Michael Faraday "

Q:

The sky appears blue die to 

939 0

  • 1
    Refraction of light
    Correct
    Wrong
  • 2
    Scattering of light
    Correct
    Wrong
  • 3
    Diffraction of light
    Correct
    Wrong
  • 4
    Reflections of light
    Correct
    Wrong
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Answer : 2. "Scattering of light"

Q:

In which direction the rainbow is seen at 12 noon? 

5205 0

  • 1
    In the East
    Correct
    Wrong
  • 2
    It cannot be seen
    Correct
    Wrong
  • 3
    In the West
    Correct
    Wrong
  • 4
    In the South
    Correct
    Wrong
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Answer : 2. "It cannot be seen"

Q:

Radioactivity is measured by 

3352 0

  • 1
    Seismometer
    Correct
    Wrong
  • 2
    Ammeter
    Correct
    Wrong
  • 3
    Hydrometer
    Correct
    Wrong
  • 4
    Geiger Counter
    Correct
    Wrong
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Answer : 4. "Geiger Counter "

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