Physics Practice Question and Answer

Q:

How is 'Power’ interpreted?

768 0

  • 1
    Work done in energy transfer
    Correct
    Wrong
  • 2
    Working rate or energy transfer rate
    Correct
    Wrong
  • 3
    Work done in a minute
    Correct
    Wrong
  • 4
    Force applied to increase the load
    Correct
    Wrong
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Answer : 2. "Working rate or energy transfer rate "

Q: Megahertz is a measurement of 1294 0

  • 1
    Frequency
    Correct
    Wrong
  • 2
    Speed
    Correct
    Wrong
  • 3
    Wavelength
    Correct
    Wrong
  • 4
    Capacity
    Correct
    Wrong
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Answer : 1. "Frequency"
Explanation :

Answer: A) Frequency Explanation: Megahertz is used to measure wave frequencies, as well as the speed of microprocessors. One MHz represents one million cycles per second. The speed of microprocessors, called the clock speed.

Q:

One fathom is equal to

2194 0

  • 1
    6 meters
    Correct
    Wrong
  • 2
    6 feet
    Correct
    Wrong
  • 3
    60 feet
    Correct
    Wrong
  • 4
    100 cm
    Correct
    Wrong
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Answer : 2. "6 feet"

Q:

The purpose of Choke in tube light is

2907 0

  • 1
    To decrease the current
    Correct
    Wrong
  • 2
    To increase the current
    Correct
    Wrong
  • 3
    To decrease the voltage momentarily
    Correct
    Wrong
  • 4
    To increase the voltage momentarily
    Correct
    Wrong
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Answer : 4. "To increase the voltage momentarily"

Q:

What happens to the speed of a cycle when it travels on a rough surface?

929 0

  • 1
    Increases
    Correct
    Wrong
  • 2
    Decreases
    Correct
    Wrong
  • 3
    Remains the same
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "Decreases"

Q:

What is the decibel level of sound produced by two persons in conversation? 

1742 0

  • 1
    About 30 decibels
    Correct
    Wrong
  • 2
    About 100 decibels
    Correct
    Wrong
  • 3
    About 5 decibels
    Correct
    Wrong
  • 4
    About 10 decibels
    Correct
    Wrong
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Answer : 1. "About 30 decibels "

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:

Pressure inside a soap bubble is-

841 0

  • 1
    More than atmospheric pressure
    Correct
    Wrong
  • 2
    Less than atmospheric pressure
    Correct
    Wrong
  • 3
    Equal to atmospheric pressure
    Correct
    Wrong
  • 4
    Half of atmospheric pressure/
    Correct
    Wrong
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Answer : 1. "More than atmospheric pressure"

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