Physics Practice Question and Answer

Q:

Maxwell is unit of

1722 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:

Which one of the following common devices works on the basis of the principle of mutual induction?

718 1

  • 1
    Tubelight
    Correct
    Wrong
  • 2
    Transformer
    Correct
    Wrong
  • 3
    Photodiode
    Correct
    Wrong
  • 4
    LED
    Correct
    Wrong
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Answer : 2. "Transformer"

Q:

Fathometer is used to measure

1670 0

  • 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:

In case of negative work the angle between the force and displacement is-

730 0

  • 1
    Correct
    Wrong
  • 2
    45°
    Correct
    Wrong
  • 3
    90°
    Correct
    Wrong
  • 4
    180°
    Correct
    Wrong
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Answer : 4. "180°"

Q:

The sum of the change in kinetic and potential energy is always-

682 0

  • 1
    Zero
    Correct
    Wrong
  • 2
    Positive
    Correct
    Wrong
  • 3
    Negative
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "Zero "

Q:

When a heated electric bulb glows -

793 0

  • 1
    Electrical energy is completely converted into light.
    Correct
    Wrong
  • 2
    Electrical energy is partly converted into light energy and partly into heat energy
    Correct
    Wrong
  • 3
    Light energy is converted into electrical energy.
    Correct
    Wrong
  • 4
    Electric energy is converted into magnetic energy .
    Correct
    Wrong
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Answer : 2. "Electrical energy is partly converted into light energy and partly into heat energy "

Q:

Which of the following laws is associated with the heating effect of electric current?

762 0

  • 1
    Joule's law
    Correct
    Wrong
  • 2
    Ohm's law
    Correct
    Wrong
  • 3
    Faraday's law
    Correct
    Wrong
  • 4
    Newton's law
    Correct
    Wrong
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Answer : 1. "Joule's law "

Q:

An object of mass 13 kg is moving with a uniform velocity of 5 ms-1. What is the kinetic energy possessed by the object?

738 0

  • 1
    187.5 J
    Correct
    Wrong
  • 2
    17.5 J
    Correct
    Wrong
  • 3
    162.5 J
    Correct
    Wrong
  • 4
    162.5 ms
    Correct
    Wrong
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Answer : 3. "162.5 J"

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