Second Year Physics Chapter 6 Short Questions Online Preparation (Physics of solids test)

Question # 1

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 # 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

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

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

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 # 6

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 # 7

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 # 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

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 # 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.

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

Second Year Physics Chapter 6 Short Questions Online Preparation

Online Short Questions For Chapter 6 "12th Class Physics Chapter 6 Short Questions Preparation "

Physics - 12th Class Physics Chapter 6 Short Questions Preparation

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

Define elastic limit and Yield point.

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

What is the difference between intrinsic and extrinsic semiconductors?

What is meant by strain energy?

Define stress and strain,What are their units.

Define cell unit.

What are paramagnetic Substance?Give an example

Define crystalline and amorphous.

Define yield point and ultimate tensile stress.

Prepare Complete Set Wise Questions For Chapter 6 "12th Class Physics Chapter 6 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

12th Class Physics Chapter 6 Short Questions Preparation - Set 1

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

Define elastic limit and Yield point.

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

What is the difference between intrinsic and extrinsic semiconductors?

What is meant by strain energy?

Define stress and strain,What are their units.

Define cell unit.

What are paramagnetic Substance?Give an example

Define crystalline and amorphous.

Define yield point and ultimate tensile stress.

12th Class Physics Chapter 6 Short Questions Preparation - Set 2

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

Define stress and write its formula.

Define UTS of a material.

What are paramagnetic Substance?Give an example

Explain what is curie temperature?

Define retantivity.

What is meant by hysteresis loss?

What is meant by para and ferromagnetic substance?

Differentiate between ductile and brittle substance,Give their examples.

Define crystalline and amorphous.

12th Class Physics Chapter 6 Short Questions Preparation - Set 3

What is meant by strain energy?

Differentiate between amorphous and polymeric solid.

Define Fracture stress.

Describe energy band picture of insulators.

Distinguished between elasticity and plasticity.

Distinguished between a valence and a conduction band.

What is meant by hysteresis loss?

What is meant by Ferromagnetic substance?

Define young modulus and shear modulus.

Define polymerization,write two examples of polymeric solid

12th Class Physics Chapter 6 Short Questions Preparation - Set 4

Define yield point and ultimate tensile stress.

Distinguished between soft magnetic material and hard magnetic materials.

Describe energy band picture of insulators.

Define coercivity of a material.

Define polymeric solid with example.

Differentiate between ductile and brittle substance,Give their examples.

Explain what is curie temperature?

Define young modulus and shear modulus.

Define crystalline and amorphous.

Define stress and write its formula.

12th Class Physics Ch 17 Preparation

Is this page helpful?