Physics Questions Practice Question and Answer

Q:

The energy of the Sun is produced by?

935 0

  • 1
    by oxidation
    Correct
    Wrong
  • 2
    by nuclear fission
    Correct
    Wrong
  • 3
    by ionization
    Correct
    Wrong
  • 4
    by nuclear fusion
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "by nuclear fusion"

Q:

What force is used to remove cream from milk?

908 0

  • 1
    frictional force
    Correct
    Wrong
  • 2
    Centripetal force
    Correct
    Wrong
  • 3
    centrifugal force
    Correct
    Wrong
  • 4
    none of these
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "centrifugal force"

Q:

Archimedes' law is related to which of the following?

820 0

  • 1
    Law of Gravity
    Correct
    Wrong
  • 2
    Law of right angled triangle
    Correct
    Wrong
  • 3
    Law of Flotation
    Correct
    Wrong
  • 4
    none of these
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Law of Flotation"

Q:

What is measured by cusec?

802 0

  • 1
    flow of water
    Correct
    Wrong
  • 2
    depth of water
    Correct
    Wrong
  • 3
    Quantity of water
    Correct
    Wrong
  • 4
    Purity of water
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "flow of water"

Q:

Rocket works on the principle of

959 0

  • 1
    energy conservation
    Correct
    Wrong
  • 2
    Bernoulli theorem
    Correct
    Wrong
  • 3
    momentum conservation
    Correct
    Wrong
  • 4
    none of these
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "momentum conservation"

Q:

Which of the following is false with reference to a photo-voltaic cell?

902 0

  • 1
    It can store light energy in the form of electrical energy
    Correct
    Wrong
  • 2
    It converts electric energy into light energy
    Correct
    Wrong
  • 3
    It is another name as solar cell
    Correct
    Wrong
  • 4
    It can be used as infra-red detectors
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "It converts electric energy into light energy"

Q:

The power of a lens is -2.0 D. Here ‘D’ stands for ________.

760 0

  • 1
    distance
    Correct
    Wrong
  • 2
    dilation
    Correct
    Wrong
  • 3
    dioptre
    Correct
    Wrong
  • 4
    degree
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "dioptre"

Q: Megahertz is a measurement of 1328 0

  • 1
    Frequency
    Correct
    Wrong
  • 2
    Speed
    Correct
    Wrong
  • 3
    Wavelength
    Correct
    Wrong
  • 4
    Capacity
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

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.

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully