Online Short Questions For Chapter 6 "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

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

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 # 3

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.

Question # 4

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 # 5

How n type semiconductors are formed?

Ans 1: When a silicon crystal is doped with a pentavalent element,e.g arsenic,antimony or phosphorus etc.four valence electrons of the impurity atom form covalent bond with the four neighbouring Si atoms,while the fifth valence electrons provide a free electron in the crystal.Such a doped semiconductor is called n type semiconductor.

Question # 6

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 # 7

What does are of hysteresis loop tell?

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

Question # 8

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 # 9

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 # 10

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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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

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

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 # 3

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.

Question # 4

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 # 5

How n type semiconductors are formed?

Ans 1: When a silicon crystal is doped with a pentavalent element,e.g arsenic,antimony or phosphorus etc.four valence electrons of the impurity atom form covalent bond with the four neighbouring Si atoms,while the fifth valence electrons provide a free electron in the crystal.Such a doped semiconductor is called n type semiconductor.

Question # 6

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 # 7

What does are of hysteresis loop tell?

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

Question # 8

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 # 9

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 # 10

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 - Set 2

Question # 1

Define stress and write its formula.

Ans 1: It is defined as the force applied on unit are to produce any change in shape,volume or length of a body.Its formula is
Stress=Force/Area

Question # 2

Define retantivity.

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

Question # 3

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.

Question # 4

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 # 5

Distinguished between elasticity and plasticity.

Ans 1: Elasticity: In deformed crystalline solid,the atoms return to their equilibrium position after the removal of external force.This ability of the body to return to its original shape is called elasticity.
Ans 2: Plasticity:If the stress is increased beyond elastic limit,the specimen becomes permanently deformed.This is called plasticity.

Question # 6

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 # 7

How the conductivity of semiconductor can be raised?

Ans 1: The conductivity of a semiconductor can be raised by the process of doping in which small number of impurity atoms are added to pure semiconductors.

Question # 8

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 # 9

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.

Question # 10

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.

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

Question # 1

Define crystal lattice.

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

Question # 2

Define retantivity.

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

Question # 3

How n type semiconductors are formed?

Ans 1: When a silicon crystal is doped with a pentavalent element,e.g arsenic,antimony or phosphorus etc.four valence electrons of the impurity atom form covalent bond with the four neighbouring Si atoms,while the fifth valence electrons provide a free electron in the crystal.Such a doped semiconductor is called n type semiconductor.

Question # 4

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

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 stress and write its formula.

Ans 1: It is defined as the force applied on unit are to produce any change in shape,volume or length of a body.Its formula is
Stress=Force/Area

Question # 7

How the conductivity of semiconductor can be raised?

Ans 1: The conductivity of a semiconductor can be raised by the process of doping in which small number of impurity atoms are added to pure semiconductors.

Question # 8

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 # 9

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 # 10

What does are of hysteresis loop tell?

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

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

Question # 1

What does are of hysteresis loop tell?

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

Question # 2

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.

Question # 3

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 # 4

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 # 5

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 # 6

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 # 7

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.

Question # 8

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

Question # 9

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 # 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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Online Short Questions Preparations

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

What is meant by Ferromagnetic substance?

Define polymeric solid with example.

Differentiate between amorphous and polymeric solid.

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

How n type semiconductors are formed?

What is meant by hysteresis loss?

What does are of hysteresis loop tell?

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

What are paramagnetic Substance?Give an example

What is the difference between intrinsic and extrinsic semiconductors?

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

What is meant by Ferromagnetic substance?

Define polymeric solid with example.

Differentiate between amorphous and polymeric solid.

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

How n type semiconductors are formed?

What is meant by hysteresis loss?

What does are of hysteresis loop tell?

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

What are paramagnetic Substance?Give an example

What is the difference between intrinsic and extrinsic semiconductors?

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

Define stress and write its formula.

Define retantivity.

Define insulators ,conductors and semiconductors.

Describe energy band picture of insulators.

Distinguished between elasticity and plasticity.

Distinguished between soft magnetic material and hard magnetic materials.

How the conductivity of semiconductor can be raised?

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

Define Fracture stress.

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

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

Define crystal lattice.

Define retantivity.

How n type semiconductors are formed?

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

Define superconductors.

Define stress and write its formula.

How the conductivity of semiconductor can be raised?

What are paramagnetic Substance?Give an example

What is meant by para and ferromagnetic substance?

What does are of hysteresis loop tell?

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

What does are of hysteresis loop tell?

Define elastic limit and Yield point.

Define polymeric solid with example.

What is meant by para and ferromagnetic substance?

What are paramagnetic Substance?Give an example

Define crystalline and amorphous.

Describe the energy band picture of semiconductors.

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

Distinguished between a valence and a conduction band.

What is meant by strain energy?

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