Tag: physics

Questions Related to physics

The electric generator is based on which scientific principle?

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  1. Reflection of ultrasonic waves

  2. Superconductivity

  3. Faradays laws of electromagnetic induction

  4. Magnetic confinement of plasma

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Correct Option: C
Explanation:

Electric generator was faradays law of electromagnetic induction,a changing magnetic flux gives rise to electric current.

Which of the following phenomena does not come under macroscopic domain?

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  1. Phenomena at laboratory scales

  2. Phenomena at terrestrial scales

  3. Molecular and nuclear phenomena

  4. Phenomena at astronomical scales

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Correct Option: C
Explanation:

Molecular and nuclear phenomenon come under microscopic domain.

Bullet trains are example of invention related to which fields ?

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  1. Medicine

  2. Transportation

  3. Education

  4. None of these

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Correct Option: B

Heliocentric theory was proposed by ................

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  1. Copernicus

  2. Ptolemy

  3. Newton

  4. Tychobrahe

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Correct Option: A
Explanation:

Heliocentric theory is an astronomical model which was proposed by Polish astronomer Nicolaus Copernicus. In this theory, the sun is at the center of the solar system and all the planets and heavenly bodies revolve around it.

Nuclear power plant is example of invention related to which field ?

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  1. Electricity

  2. Education

  3. E learning

  4. Medication

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Correct Option: A
Explanation:

Nuclear energy is converted into electrical energy in a nuclear power plant.

State whether given statement is True or False.
Cashless transaction can be carried out with ATM ?

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  1. True

  2. False

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Correct Option: A
Explanation:

Nowadays you can transfer the money to another account from your account using an ATM machine. 

Physics is sometimes referred to as exact science. Because.

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  1. Physics interacts with almost all the sciences

  2. Due important is given for the measurement of quantities

  3. It involves philosophy

  4. Physics is related more closely to mathematics than any other science

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Correct Option: B
Explanation:

More importance is given to measurement of quantities, i.e., qualitative analysis. 

Which among the following has the strongest intermolecular force between their molecules?

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  1. Milk

  2. Water

  3. Sodium chloride

  4. Air

  5. None of these

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Correct Option: B

Mass of a material varies with temperature.

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  1. True

  2. False

  3. Nither

  4. Either

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Correct Option: B
Explanation:

Mass is defined as amount of matter something contains. So it it is independent properties of any other properties. 

Option B

Sun spins around once every

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  1. $26$ days

  2. $27.4$ days

  3. $27$ cas

  4. $30$ days

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Correct Option: B
Explanation:

The sun rotates on its axis once every 27.4 days