ICS Part 2 Physics Chapter 17 Short Questions Preparation


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Short Questions Preparation

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Physics - ICS Part 2 Physics Chapter 17 Short Questions Preparation

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 1

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 2

Question # 1

Define yield point and ultimate tensile stress.

  • Ans 1: Yield point: The point on the stress-strain curve beyond which if stress is further increased then permanent deformation takes place in the given specimen.This is called yield point.
    Ultimate tensile stress: The maximum stress that a material can withstand called ultimate tensile stress.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 3

Question # 1

Differentiate between ductile and brittle substance,Give their examples.

  • Ans 1: Ductile substance:Substance that undergo plastic deformation unit they break are called ductile substance.Lead copper,and wrought iron are ductile.
    Brittle substance: The substance which break just after the elastic limit reached are known as brittle substance.Glass and high carbon steel are brittle.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 4

Question # 1

Distinguished between p-type semiconductor and n-type semiconductor.

  • Ans 1: p-type semiconductor:When a trivalent impurity such as aluminium is added into the semiconductor,holes are generated and p type semiconductor is formed.Holes are positive charge carrier.
  • Ans 2: n-type semiconductor: When a pentavalent impurity such as phosphorus is added into the semiconductor,free electrons are generated and n type semiconductor is formed.Charge carriers is in n-type are free electrons.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation

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