ICS Part 2 Physics Chapter 17 Short Questions Preparation

12th Class Physics
Short Questions Preparation

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Physics - ICS Part 2 Physics Chapter 17 Short Questions Preparation

Question # 1

Define volumetric strain.

Ans 1: When the applied stress change the volume,then the change in volume per unit volume is called volumetric strain.

Question # 2

Describe the difference between proportional limit and elastic limit.

Ans 1: Proportional Limit: The greatest stress that a material can endure without losing straight line proportionally between stress and strain.Hooke's law is obeyed in this region.
Ans 2: Elastic limit: The greatest stress that a material can endure without any permanent deformation is called elastic limit.This kind of behavior is called elasticity.

Question # 3

What are glassy solids?Do they possessed property of flow?

Ans 1: Amorphous solids are called as glassy solids.Any non-crystalline solid in which the atoms and molecules are not organized in a definite lattice pattern is called glassy solid.NO they do not possess the property of flow.

Question # 4

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.

Question # 5

Define polymeric solid with example.

Ans 1: Polymers are solid materials with a structure that is intermediate between order and disorder,They can be classified as partially or poorly crystalline solids.For example plastic,rubber.

Question # 6

Explain what is curie temperature?

Ans 1: The temperature at which the domains of ferromagnetic material start losing their orderliness is called Curie temperature,For example the curie temperature of iron is 750^oC.

Question # 7

What is meant by strain energy?How can it be determined from the force extension of graph?

Ans 1: The amount of P.E stored in a material due to displacement of its molecule from its equilibrium position.under the action of stress is called strain energy,Strain energy can be determined from the force extension graph according to the following reasons
Strain energy=1/2L₁F₁

Question # 8

Distinguished between soft magnetic material and hard magnetic materials.

Ans 1: Soft magnetic: The materials in which their domains can be easily orientated on applying external magnetic field and also return to original positions when field is removes.E.g iron.
Ans 2: Hard magnetic:The material in which their domains can not easily orientated on applying external magnetic field.But once the domains are lined up by a very strong magnetic field,they will restrain their position after the removal of magnetic field.

Question # 9

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.

Question # 10

Define retantivity.

Ans 1: When the current is reduced to zero,the material still remains strongly magnetized which is known as retantivity.

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Prepare Complete Set Wise Questions For Chapter 6 "ICS Part 2 Physics Chapter 17 Short Questions Preparation "

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

Question # 1

Define volumetric strain.

Ans 1: When the applied stress change the volume,then the change in volume per unit volume is called volumetric strain.

Question # 2

Describe the difference between proportional limit and elastic limit.

Ans 1: Proportional Limit: The greatest stress that a material can endure without losing straight line proportionally between stress and strain.Hooke's law is obeyed in this region.
Ans 2: Elastic limit: The greatest stress that a material can endure without any permanent deformation is called elastic limit.This kind of behavior is called elasticity.

Question # 3

What are glassy solids?Do they possessed property of flow?

Ans 1: Amorphous solids are called as glassy solids.Any non-crystalline solid in which the atoms and molecules are not organized in a definite lattice pattern is called glassy solid.NO they do not possess the property of flow.

Question # 4

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.

Question # 5

Define polymeric solid with example.

Ans 1: Polymers are solid materials with a structure that is intermediate between order and disorder,They can be classified as partially or poorly crystalline solids.For example plastic,rubber.

Question # 6

Explain what is curie temperature?

Ans 1: The temperature at which the domains of ferromagnetic material start losing their orderliness is called Curie temperature,For example the curie temperature of iron is 750^oC.

Question # 7

What is meant by strain energy?How can it be determined from the force extension of graph?

Ans 1: The amount of P.E stored in a material due to displacement of its molecule from its equilibrium position.under the action of stress is called strain energy,Strain energy can be determined from the force extension graph according to the following reasons
Strain energy=1/2L₁F₁

Question # 8

Distinguished between soft magnetic material and hard magnetic materials.

Ans 1: Soft magnetic: The materials in which their domains can be easily orientated on applying external magnetic field and also return to original positions when field is removes.E.g iron.
Ans 2: Hard magnetic:The material in which their domains can not easily orientated on applying external magnetic field.But once the domains are lined up by a very strong magnetic field,they will restrain their position after the removal of magnetic field.

Question # 9

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.

Question # 10

Define retantivity.

Ans 1: When the current is reduced to zero,the material still remains strongly magnetized which is known as retantivity.

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

Question # 1

Define volumetric strain.

Ans 1: When the applied stress change the volume,then the change in volume per unit volume is called volumetric strain.

Question # 2

Define crystal lattice.

Ans 1: The whole structure obtained by the repetition of unit cell is known as crystal lattice.

Question # 3

Define module of elasticity.

Ans 1: The ratio of stress to strain is constant for a given material ,provided the external applied force is not too great called modulus of elasticity.
modulus of elasticity=stress/strain

Question # 4

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.

Question # 5

Define superconductors.

Ans 1: The materials whose resistivity becomes zero below a certain temperature are called superconductors.For example mercury becomes super conductor below 4.2 k temperature.

Question # 6

Define polymeric solid with example.

Ans 1: Polymers are solid materials with a structure that is intermediate between order and disorder,They can be classified as partially or poorly crystalline solids.For example plastic,rubber.

Question # 7

What are paramagnetic Substance?Give an example

Ans 1: The solid in which the orbital and spin axes of the electrons in an atom are so oriented that their magnetic field support each other are called paramagnetic substance.For example ozone,platinum etc

Question # 8

Define coercivity of a material.

Ans 1: To demagnetize the material the magnetizing current is reserved and increased to reduce the magnetization to zero.This is known as coercive current,And this process is called coercivity.

Question # 9

Explain what is curie temperature?

Ans 1: The temperature at which the domains of ferromagnetic material start losing their orderliness is called Curie temperature,For example the curie temperature of iron is 750^oC.

Question # 10

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 3

Question # 1

What is meant by Ferromagnetic substance?

Ans 1: In ferromagnetic substance the atoms cooperate with each other in such a away so as to exhibit a strong magnetic field.In ferromagnetic substance there exists a small region called domain.

Question # 2

Differentiate between tensile stress and shear modes of stress and strain.

Ans 1: Tensile Stress: A stress that cause the change in length of an object is called tensile stress.
Shear stress: A stress that cause the change in shape of an object is called shear stress.
Tensile stain:If the strain is due to tensile stress it is called tensile strain.A strain produced in the object when it is subjected to shear stress is called shear strain.

Question # 3

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.

Question # 4

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.

Question # 5

Define module of elasticity.

Ans 1: The ratio of stress to strain is constant for a given material ,provided the external applied force is not too great called modulus of elasticity.
modulus of elasticity=stress/strain

Question # 6

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.

Question # 7

What is meant by hysteresis loss?

Ans 1: The area of the loop is the measure of the energy needed to magnetize and demagnetize the specimen during each cycle of the magnetizing current.This is energy required to do work against internal friction of the domains,this work is dissipated as heat.It is called hysteresis loss.

Question # 8

What are glassy solids?Do they possessed property of flow?

Ans 1: Amorphous solids are called as glassy solids.Any non-crystalline solid in which the atoms and molecules are not organized in a definite lattice pattern is called glassy solid.NO they do not possess the property of flow.

Question # 9

What is meant by strain energy?How can it be determined from the force extension of graph?

Ans 1: The amount of P.E stored in a material due to displacement of its molecule from its equilibrium position.under the action of stress is called strain energy,Strain energy can be determined from the force extension graph according to the following reasons
Strain energy=1/2L₁F₁

Question # 10

What is meant by strain energy?

Ans 1: The amount of P.E stored in a material due to displacement of its molecule from its equilibrium position.under the action of stress is called strain energy,Strain energy can be determined from the force extension graph according to the following reasons<div>Strain energy=1/2L<sub>1</sub>F<sub>1</sub></div>

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

Question # 1

Define polymeric solid with example.

Ans 1: Polymers are solid materials with a structure that is intermediate between order and disorder,They can be classified as partially or poorly crystalline solids.For example plastic,rubber.

Question # 2

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.

Question # 3

Define coercivity of a material.

Ans 1: To demagnetize the material the magnetizing current is reserved and increased to reduce the magnetization to zero.This is known as coercive current,And this process is called coercivity.

Question # 4

Define superconductors.

Ans 1: The materials whose resistivity becomes zero below a certain temperature are called superconductors.For example mercury becomes super conductor below 4.2 k temperature.

Question # 5

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

Question # 6

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.

Question # 7

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.

Question # 8

Write the used of superconductors.

Ans 1: Superconductors can be used in :
1. Magnetic Resonance Imaging
2. Powerful but small electric motors
3. Fast computer chips
4. Magnetic Levitation Trains

Question # 9

What is meant by strain energy?

Ans 1: The amount of P.E stored in a material due to displacement of its molecule from its equilibrium position.under the action of stress is called strain energy,Strain energy can be determined from the force extension graph according to the following reasons<div>Strain energy=1/2L<sub>1</sub>F<sub>1</sub></div>

Question # 10

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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Physics

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ICS Part 2 Physics Chapter 17 Short Questions Preparation

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ICS Part 2 Physics Chapter 17 Short Questions Preparation

12th Class PhysicsShort Questions Preparation

12th Class Physics Chapter Wise Preparation

Online Short Questions For Chapter 6 "ICS Part 2 Physics Chapter 17 Short Questions Preparation "

Physics - ICS Part 2 Physics Chapter 17 Short Questions Preparation

Define volumetric strain.

Describe the difference between proportional limit and elastic limit.

What are glassy solids?Do they possessed property of flow?

Define crystalline and amorphous.

Define polymeric solid with example.

Explain what is curie temperature?

What is meant by strain energy?How can it be determined from the force extension of graph?

Distinguished between soft magnetic material and hard magnetic materials.

What is the difference between intrinsic and extrinsic semiconductors?

Define retantivity.

Prepare Complete Set Wise Questions For Chapter 6 "ICS Part 2 Physics Chapter 17 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

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

Define volumetric strain.

Describe the difference between proportional limit and elastic limit.

What are glassy solids?Do they possessed property of flow?

Define crystalline and amorphous.

Define polymeric solid with example.

Explain what is curie temperature?

What is meant by strain energy?How can it be determined from the force extension of graph?

Distinguished between soft magnetic material and hard magnetic materials.

What is the difference between intrinsic and extrinsic semiconductors?

Define retantivity.

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

Define volumetric strain.

Define crystal lattice.

Define module of elasticity.

What is the difference between intrinsic and extrinsic semiconductors?

Define superconductors.

Define polymeric solid with example.

What are paramagnetic Substance?Give an example

Define coercivity of a material.

Explain what is curie temperature?

Describe energy band picture of insulators.

ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 3

What is meant by Ferromagnetic substance?

Differentiate between tensile stress and shear modes of stress and strain.

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

Distinguished between a valence and a conduction band.

Define module of elasticity.

Differentiate between ductile and brittle substance,Give their examples.

What is meant by hysteresis loss?

What are glassy solids?Do they possessed property of flow?

What is meant by strain energy?How can it be determined from the force extension of graph?

What is meant by strain energy?

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

Define polymeric solid with example.

Define crystalline and amorphous.

Define coercivity of a material.

Define superconductors.

Describe energy band picture of insulators.

Differentiate between ductile and brittle substance,Give their examples.

What is meant by para and ferromagnetic substance?

Write the used of superconductors.

What is meant by strain energy?

Define Fracture stress.

ICS Part 2 Physics Chapter 17 Short Questions Preparation

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