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

Define elastic limit and Yield point.

  • Ans 1: The greatest stress that a material can endure without any permanent deformation is called elastic limit.This kind of behavior is called elasticity.
    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.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 1

Question # 1

Define elastic limit and Yield point.

  • Ans 1: The greatest stress that a material can endure without any permanent deformation is called elastic limit.This kind of behavior is called elasticity.
    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.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 2

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 - Set 3

Question # 1

Define UTS of a material.

  • Ans 1: The maximum stress that a material can withstand is called ultimate tensile stress.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 4

Question # 1

Define insulators ,conductors and semiconductors.

  • Ans 1: Insulator: Those substance which have valence electrons tightly bound to their atoms are called insulators.
    Conductors: Those substance which have plenty of free electrons for electrical conduction are called conductors,
    Semiconductors:Those substance which have intermediate range of conductivities are called semiconductors e.g germanium and silicon.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation

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