Physics Practice Question and Answer

Q:

If the resistance of a conductor is doubled , the current gets halved. This is because:

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  • 1
    I=V-R
    Correct
    Wrong
  • 2
    Correct
    Wrong
  • 3
    I=VR
    Correct
    Wrong
  • 4
    Correct
    Wrong
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Answer : 2. ""

Q:

Rocket works on the principle of

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  • 1
    energy conservation
    Correct
    Wrong
  • 2
    Bernoulli theorem
    Correct
    Wrong
  • 3
    momentum conservation
    Correct
    Wrong
  • 4
    none of these
    Correct
    Wrong
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Answer : 3. "momentum conservation"

Q:

Denmark is called?

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  • 1
    Country of Industry
    Correct
    Wrong
  • 2
    Hydropower Country
    Correct
    Wrong
  • 3
    Country of the winds
    Correct
    Wrong
  • 4
    Country of mineral clusters
    Correct
    Wrong
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Answer : 3. "Country of the winds"

Q:

In what units can we measure food energy?

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  • 1
    Joule
    Correct
    Wrong
  • 2
    calories
    Correct
    Wrong
  • 3
    Arg
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "calories"

Q:

The Ratio of the total distance is travelled by a body to the total time taken by it is its.

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  • 1
    Instantaneous velocity
    Correct
    Wrong
  • 2
    Linear velocity
    Correct
    Wrong
  • 3
    Average Speed
    Correct
    Wrong
  • 4
    Acceleration
    Correct
    Wrong
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Answer : 3. "Average Speed"

Q:

What is the Newton / kg unit?

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  • 1
    velocity
    Correct
    Wrong
  • 2
    Gravitational potential
    Correct
    Wrong
  • 3
    force
    Correct
    Wrong
  • 4
    acceleration
    Correct
    Wrong
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Answer : 4. "acceleration"

Q:

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

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  • 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:

Atomic bomb theory is based on-

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  • 1
    on nuclear fusion
    Correct
    Wrong
  • 2
    On nuclear fission
    Correct
    Wrong
  • 3
    Both of the above
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 2. "On nuclear fission"

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