Physics Practice Question and Answer

Q:

The substance which conducts current in the solid state is –

1372 0

  • 1
    iodine
    Correct
    Wrong
  • 2
    sodium chloride
    Correct
    Wrong
  • 3
    diamond
    Correct
    Wrong
  • 4
    graphite
    Correct
    Wrong
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Answer : 4. "graphite "

Q:

A wooden spoon is dipped in a cup of ice-cream, then its other end 

2222 0

  • 1
    does not become cold
    Correct
    Wrong
  • 2
    becomes cold by the process of conduction
    Correct
    Wrong
  • 3
    becomes cold by the process of convection
    Correct
    Wrong
  • 4
    becomes cold by the process of radiation
    Correct
    Wrong
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Answer : 1. "does not become cold "

Q:

Shakti or Strength is the zodiac?

934 0

  • 1
    Scalar
    Correct
    Wrong
  • 2
    Pradeesh
    Correct
    Wrong
  • 3
    Vector
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "Scalar"

Q: Megahertz is a measurement of 1291 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

2190 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

2900 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?

927 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? 

1741 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 "

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