Physics Practice Question and Answer

Q:

Transformer is used for -

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  • 1
    To step up DC voltage
    Correct
    Wrong
  • 2
    To step up or step-down AC voltages
    Correct
    Wrong
  • 3
    Converting AC into Dc
    Correct
    Wrong
  • 4
    Converting DC into AC
    Correct
    Wrong
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Answer : 2. "To step up or step-down AC voltages"

Q:

What will remain unchanged if the quantity of the commodity changes?

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  • 1
    Volume
    Correct
    Wrong
  • 2
    Density
    Correct
    Wrong
  • 3
    mass
    Correct
    Wrong
  • 4
    load
    Correct
    Wrong
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Answer : 2. "Density"

Q:

Fathometer is used to measure

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  • 1
    Earthquake
    Correct
    Wrong
  • 2
    Rain
    Correct
    Wrong
  • 3
    Depth of sea
    Correct
    Wrong
  • 4
    Sound intensity
    Correct
    Wrong
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Answer : 3. "Depth of sea "

Q:

Satellite is kept moving in its orbit around the Earth, it is due to – 

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  • 1
    Gravitational Force or lack of it
    Correct
    Wrong
  • 2
    Some other Forces
    Correct
    Wrong
  • 3
    Centrifugal Force
    Correct
    Wrong
  • 4
    Centripetal Force
    Correct
    Wrong
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Answer : 4. "Centripetal Force "

Q:

The product of mass and velocity of an object is called-

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  • 1
    momentum
    Correct
    Wrong
  • 2
    acceleration
    Correct
    Wrong
  • 3
    volume
    Correct
    Wrong
  • 4
    density
    Correct
    Wrong
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Answer : 1. "momentum"

Q:

Maxwell is unit of

2313 2

  • 1
    Intensity of magnetization
    Correct
    Wrong
  • 2
    Permeability
    Correct
    Wrong
  • 3
    Magnetic flux
    Correct
    Wrong
  • 4
    Magnetic susceptibility
    Correct
    Wrong
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Answer : 3. "Magnetic flux"

Q:

When a body falls from an aeroplane, there is increase in its 

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  • 1
    Potential energy
    Correct
    Wrong
  • 2
    Kinetic energy
    Correct
    Wrong
  • 3
    Mass
    Correct
    Wrong
  • 4
    Acceleration
    Correct
    Wrong
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Answer : 2. "Kinetic energy"

Q:

Surface tension when soap is dissolved in water-

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  • 1
    Decrease
    Correct
    Wrong
  • 2
    Increase
    Correct
    Wrong
  • 3
    Remains unchanged
    Correct
    Wrong
  • 4
    Becomes infinite
    Correct
    Wrong
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Answer : 1. "Decrease"

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