Second Year Physics Chapter 6 Short Questions Online Preparation

Online Short Questions For Chapter 6 "12th Class Physics Chapter 6 Short Questions Preparation "

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Physics - 12th Class Physics Chapter 6 Short Questions Preparation

Question # 1

What is meant by para and ferromagnetic substance?

  • Ans 1: The orbits and the spin axes of the electrons in an atom are so oriented that their field spot each other and the atom behaves like a tiny magnet.Substance with such atoms are called paramagnetic substance e.g iron.
    There are some solid substance in which the atom cooperate with each other in such a way so as to exhibit a strong magnetic field there are called ferromagnetic substance.
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Prepare Complete Set Wise Questions For Chapter 6 "12th Class Physics Chapter 6 Short Questions Preparation "

12th Class Physics Chapter 6 Short Questions Preparation - Set 1

Question # 1

What is meant by para and ferromagnetic substance?

  • Ans 1: The orbits and the spin axes of the electrons in an atom are so oriented that their field spot each other and the atom behaves like a tiny magnet.Substance with such atoms are called paramagnetic substance e.g iron.
    There are some solid substance in which the atom cooperate with each other in such a way so as to exhibit a strong magnetic field there are called ferromagnetic substance.
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12th Class Physics Chapter 6 Short Questions Preparation - Set 2

Question # 1

Distinguished between a valence and a conduction band.

  • Ans 1: Valence bond: The energy band occupied by valence electrons is called the valence band.
  • Ans 2: Conduction band:The energy band are occupied by free electrons is called the conduction band.
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12th Class Physics Chapter 6 Short Questions Preparation - Set 3

Question # 1

Define Fracture stress.

  • Ans 1: Once the limit of ultimate tensile stress (UTS) is crossed,the material breaks and the stress is called fracture stress.
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12th Class Physics Chapter 6 Short Questions Preparation - Set 4

Question # 1

Define stress and strain,What are their units.

  • Ans 1: The force applied on unit area to produce any change in the shape,volume or length of the body is called stress,its SI units is pascal.
    And strain is the measure of deformation of solid when stress is applied to it.It has no unit.
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