ICS Part 2 Physics Chapter 17 Short Questions Preparation


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Physics - ICS Part 2 Physics Chapter 17 Short Questions Preparation

Question # 1

Describe energy band picture of insulators.

  • Ans 1: Insulators are those materials in which valence electron are bound to very tight to their atoms and are not free.In terms of energy bands,it means that an insulator has:
    • An empty conduction band
    • A full valence band
    • A large energy gap
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Prepare Complete Set Wise Questions For Chapter 6 "ICS Part 2 Physics Chapter 17 Short Questions Preparation "

ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 1

Question # 1

Describe energy band picture of insulators.

  • Ans 1: Insulators are those materials in which valence electron are bound to very tight to their atoms and are not free.In terms of energy bands,it means that an insulator has:
    • An empty conduction band
    • A full valence band
    • A large energy gap
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 2

Question # 1

Differentiate between amorphous and polymeric solid.

  • Ans 1: Amorphous solid,any non-crystalline solid in which the atoms and molecules are not organized in a definite lattice pattern,such solid include glass ,plastic and gel.
  • Ans 2: Polymer are said to be more or less solid materials with a structure that is intermediate between order and disorder.They can be classified as partially or poorly crystalline solids.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 3

Question # 1

Describe the energy band picture of semiconductors.

  • Ans 1: In semiconductors,valence band and conduction is partially filled and they have a very narrow forbidden energy gap.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 4

Question # 1

What is the difference between intrinsic and extrinsic semiconductors?

  • Ans 1: Intrinsic Semiconductor:A semiconductor in its extremely pure form is known as Intrinsicsemiconductors,Pure elements of silicon and germanium are Intrinsic semiconductors,These semiconductors elements have atoms with four valence electrons.
  • Ans 2: Extrinsic Semiconductor: The doped semiconductors material are called Extrinsic Semiconductor.The electrical behaviour of semiconductors is substantially changed introducing a small impurity into pure semiconductors,and this process is called doping.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation