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 crystalline and amorphous.

  • Ans 1: Crystalline: The solid in which there is a regular and periodic arrangements of the atoms and molecule are crystalline solids.
    Amorphous: The solid in which there is no regular arrangement of molecules like that in crystalline solids are called amorphous solid. for example ordinary glass.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 1

Question # 1

Define crystalline and amorphous.

  • Ans 1: Crystalline: The solid in which there is a regular and periodic arrangements of the atoms and molecule are crystalline solids.
    Amorphous: The solid in which there is no regular arrangement of molecules like that in crystalline solids are called amorphous solid. for example ordinary glass.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 2

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 3

Question # 1

How can the strain energy be determined from the force extension graph?

  • Ans 1: Strain energy can be determined from the force extension graph according to the following relation
    Strain energy :1/2 l1F1

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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 4

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

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