Physics Practice Question and Answer

Q:

What makes a virtual image of a real object?

1 0

  • 1
    convex mirror
    Correct
    Wrong
  • 2
    plane mirror
    Correct
    Wrong
  • 3
    concave mirror
    Correct
    Wrong
  • 4
    All of these
    Correct
    Wrong
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Answer : 2. "plane mirror"

Q:

The ‘Choke’ is used with a tube light is basically

1010 0

  • 1
    An inductor
    Correct
    Wrong
  • 2
    A capacitor
    Correct
    Wrong
  • 3
    A transformer
    Correct
    Wrong
  • 4
    A resistor
    Correct
    Wrong
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Answer : 1. "An inductor"

Q:

What constitutes current in a metal wire.

998 0

  • 1
    neutrons
    Correct
    Wrong
  • 2
    protons
    Correct
    Wrong
  • 3
    electrons
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 3. "electrons"

Q:

Seawater can be purified by the process of -

1473 1

  • 1
    filtration
    Correct
    Wrong
  • 2
    fractional distillation
    Correct
    Wrong
  • 3
    distillation
    Correct
    Wrong
  • 4
    evaporation
    Correct
    Wrong
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Answer : 3. "distillation "

Q:

Alum is used as: 

974 1

  • 1
    a disinfectant
    Correct
    Wrong
  • 2
    a purifier for water
    Correct
    Wrong
  • 3
    an analgesic
    Correct
    Wrong
  • 4
    a fertilizer
    Correct
    Wrong
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Answer : 2. "a purifier for water "

Q:

If the diameter of the capillary is doubled, then the height of the water surface in it rises-

961 0

  • 1
    Doubles
    Correct
    Wrong
  • 2
    It remains half
    Correct
    Wrong
  • 3
    Not changed
    Correct
    Wrong
  • 4
    Becomes zero
    Correct
    Wrong
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Answer : 2. "It remains half"

Q:

Surface tension when soap is dissolved in water-

1511 0

  • 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"

Q:

A flying aeroplane has _____. 

2613 1

  • 1
    only potential energy
    Correct
    Wrong
  • 2
    only kinetic energy
    Correct
    Wrong
  • 3
    neither potential nor kinetic
    Correct
    Wrong
  • 4
    both potential and kinetic energy
    Correct
    Wrong
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Answer : 4. "both potential and kinetic energy "

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