Physics Questions Practice Question and Answer

Q:

The measure of inductance is 

1551 1

  • 1
    Henry
    Correct
    Wrong
  • 2
    Ohm
    Correct
    Wrong
  • 3
    Ampere
    Correct
    Wrong
  • 4
    Coulomb
    Correct
    Wrong
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Answer : 1. "Henry "

Q:

An object weights the maximum in:

1551 0

  • 1
    Hydrogen
    Correct
    Wrong
  • 2
    Vacuum
    Correct
    Wrong
  • 3
    Air
    Correct
    Wrong
  • 4
    Water
    Correct
    Wrong
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Answer : 2. "Vacuum "

Q:

What is the unit of the physical quantity "Inductance"?

1547 0

  • 1
    weber
    Correct
    Wrong
  • 2
    farad
    Correct
    Wrong
  • 3
    henry
    Correct
    Wrong
  • 4
    tesla
    Correct
    Wrong
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Answer : 3. "henry"

Q:

The observer hears a sound from the source which is moving away from the observer who is stationary. Determine the frequency of the sound

1546 0

  • 1
    It is halved
    Correct
    Wrong
  • 2
    It remains the same
    Correct
    Wrong
  • 3
    It reaches infinity
    Correct
    Wrong
  • 4
    It gets doubled
    Correct
    Wrong
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Answer : 1. "It is halved"
Explanation :

If the observer is moving away from the source ((Figure)), the observed frequency can be found: λs=vTo−voTovTs=(v−vo)Tov(1fs)=(v−vo)(1fo)fo=fs(v−vov).


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?

1546 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"

Q:

What is the kilowatt hour unit?

1537 0

  • 1
    charge power
    Correct
    Wrong
  • 2
    Energy
    Correct
    Wrong
  • 3
    Potential power
    Correct
    Wrong
  • 4
    power
    Correct
    Wrong
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Answer : 2. "Energy"

Q:

Which of the following produces more flame?

1536 1

  • 1
    Steam
    Correct
    Wrong
  • 2
    hot air
    Correct
    Wrong
  • 3
    Sun rays
    Correct
    Wrong
  • 4
    All these
    Correct
    Wrong
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Answer : 1. "Steam"

Q:

Which of the people with myopia has glasses?

1535 0

  • 1
    convex lens
    Correct
    Wrong
  • 2
    concave lens
    Correct
    Wrong
  • 3
    Bifocal lens
    Correct
    Wrong
  • 4
    cylindrical lens
    Correct
    Wrong
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Answer : 2. "concave lens"

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