ICS Part 2 Physics Chapter 17 Short Questions Preparation

Question # 1

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 # 2

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 # 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

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 # 6

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 # 7

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 # 8

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 # 9

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 # 10

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.

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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

What is the difference between intrinsic and extrinsic semiconductors?

What is meant by hysteresis loss?

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

Define crystalline and amorphous.

Describe the difference between proportional limit and elastic limit.

How n type semiconductors are formed?

Distinguished between soft magnetic material and hard magnetic materials.

What does are of hysteresis loop tell?

Define stress and write its formula.

Define polymerization,write two examples of polymeric solid

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 the difference between intrinsic and extrinsic semiconductors?

What is meant by hysteresis loss?

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

Define crystalline and amorphous.

Describe the difference between proportional limit and elastic limit.

How n type semiconductors are formed?

Distinguished between soft magnetic material and hard magnetic materials.

What does are of hysteresis loop tell?

Define stress and write its formula.

Define polymerization,write two examples of polymeric solid

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

What are paramagnetic Substance?Give an example

Describe the difference between proportional limit and elastic limit.

What does are of hysteresis loop tell?

What is meant by Ferromagnetic substance?

Define retantivity.

Describe the energy band picture of semiconductors.

Define cell unit.

Define polymeric solid with example.

Define stress and strain,What are their units.

Define coercivity of a material.

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

Describe the energy band picture of semiconductors.

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

Define coercivity of a material.

What is meant by strain energy?

Define polymerization,write two examples of polymeric solid

Describe the difference between proportional limit and elastic limit.

Define stress and strain,What are their units.

Define superconductors.

Define cell unit.

Differentiate between amorphous and polymeric solid.

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

Describe the difference between proportional limit and elastic limit.

What is meant by para and ferromagnetic substance?

What are paramagnetic Substance?Give an example

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

What is meant by hysteresis loss?

Define module of elasticity.

Describe the energy band picture of semiconductors.

What does are of hysteresis loop tell?

Define polymerization,write two examples of polymeric solid

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

ICS Part 2 Physics Chapter 17 Short Questions Preparation

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