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

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 # 2

Define stress and strain,What are their units.

Ans 1: The force applied on unit area to produce any change in the shape,volume or length of the body is called stress,its SI units is pascal.
And strain is the measure of deformation of solid when stress is applied to it.It has no unit.

Question # 3

Define cell unit.

Ans 1: A crystalline solid consists of three dimensional pattern that repeat itself over and over again,This smallest three dimensional basic structure is called unit cell.

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

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 # 6

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 # 7

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 # 8

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 # 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

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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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

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 # 2

Define stress and strain,What are their units.

Ans 1: The force applied on unit area to produce any change in the shape,volume or length of the body is called stress,its SI units is pascal.
And strain is the measure of deformation of solid when stress is applied to it.It has no unit.

Question # 3

Define cell unit.

Ans 1: A crystalline solid consists of three dimensional pattern that repeat itself over and over again,This smallest three dimensional basic structure is called unit cell.

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

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 # 6

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 # 7

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 # 8

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 # 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

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 2

Question # 1

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 # 2

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 # 3

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 # 4

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 # 5

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 # 6

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 # 7

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 # 8

Define polymerization,write two examples of polymeric solid

Ans 1: Polymers are found by polymerization reaction,.In these reaction relatively simple molecule are chemically combined into massive long chain molecule or three dimensional structure.
Polythene and nylon are example of polymeric solids.

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

Define Saturation and Remanence of Hysteresis Loop.

Ans 1: Saturation: The material is said is reduced to magnetically saturated when magnetic flux density reaches a maximum value.
Remanence: When the current is reduced to zero,the material still remains strongly magnetize.It is due to the tendency of domains to stay partly in line,once they have been aligned,It is called remanence or relativity.

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

Question # 1

Define young modulus and shear modulus.

Ans 1: The ratio of tensile stress to tensile strain is called young modulus.
Ans 2: The ratio of shear stress to shear strain is called shear modulus.

Question # 2

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 # 3

What is critical temperature in super conductivity?

Ans 1: The temperature below which the resistivity of a material falls to zero is called critical temperature.For example mercury.

Question # 4

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 # 5

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 # 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 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 # 8

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.

Question # 9

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 # 10

Define crystal lattice.

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

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

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

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 # 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

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 # 5

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 # 6

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 # 7

Define Saturation and Remanence of Hysteresis Loop.

Ans 1: Saturation: The material is said is reduced to magnetically saturated when magnetic flux density reaches a maximum value.
Remanence: When the current is reduced to zero,the material still remains strongly magnetize.It is due to the tendency of domains to stay partly in line,once they have been aligned,It is called remanence or relativity.

Question # 8

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 # 9

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 # 10

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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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

Write the used of superconductors.

Define stress and strain,What are their units.

Define cell unit.

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

What does are of hysteresis loop tell?

Differentiate between amorphous and polymeric solid.

Differentiate between ductile and brittle substance,Give their examples.

Describe the energy band picture of semiconductors.

What is meant by para and ferromagnetic substance?

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

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

Write the used of superconductors.

Define stress and strain,What are their units.

Define cell unit.

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

What does are of hysteresis loop tell?

Differentiate between amorphous and polymeric solid.

Differentiate between ductile and brittle substance,Give their examples.

Describe the energy band picture of semiconductors.

What is meant by para and ferromagnetic substance?

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

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

Define superconductors.

What is meant by strain energy?

Define crystalline and amorphous.

Explain what is curie temperature?

Define Fracture stress.

Describe energy band picture of insulators.

Write the used of superconductors.

Define polymerization,write two examples of polymeric solid

What are paramagnetic Substance?Give an example

Define Saturation and Remanence of Hysteresis Loop.

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

Define young modulus and shear modulus.

Differentiate between amorphous and polymeric solid.

What is critical temperature in super conductivity?

Define Fracture stress.

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

Define polymeric solid with example.

What is meant by Ferromagnetic substance?

Define yield point and ultimate tensile stress.

Define superconductors.

Define crystal lattice.

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

What is meant by Ferromagnetic substance?

Distinguished between elasticity and plasticity.

Define insulators ,conductors and semiconductors.

What is meant by strain energy?

What is meant by hysteresis loss?

How the conductivity of semiconductor can be raised?

Define Saturation and Remanence of Hysteresis Loop.

Define stress and write its formula.

Define coercivity of a material.

Define yield point and ultimate tensile stress.