ICS Part 2 Physics Chapter 21 Short Questions Preparation

Question # 1

What do you mean by quark?

Ans 1: Quark is the basic building block of mesons and baryons.In actual it is the basic building block matter,It is proposed by Murray Gell-Mann and G.Zweig .It is of six types: up,down,strange,charm,bottom and top.

Question # 2

Discuss the advantage and disadvantage of nuclear power compare to the use of fossil fuel generated power.

Ans 1: Advantage and disadvantage of nuclear power are given below compared to the use of fossil generated power.
Advantage:
1. Much more energy is produced.
2. Produces no environmental pollution.
3. Electricity produced in this way is far cheaper than fossil fuel generated power.
Disadvantage :
1. Uranium mining is more dangerous than coal mining.
2. Nuclear waster is very injurous and harmful to living things.
3. Nuclear waste can not be transported through area of population whereas fossil fuel can be.

Question # 3

Differentiate between controlled and uncontrolled reaction.

Ans 1: To maintain a sustained controlled nuclear reaction,for every 2 or 3 neutrons released ,only one must be allowed to strike another uranium nucleus.it is called controlled chain reaction.
Ans 2: If more than one neutron produces further fission then it will grow uncontrolled and called uncontrolled chain reaction.

Question # 4

Define half-line of radioactive element.How is it related with decay constant?

Ans 1: Half-line:T_1/2is the period in which half of the atom of a radioactive element decay.
It is related with a decay constant by formula.
T_1/2= 0.693/Λ

Question # 5

Discuss the advantages of fission power from point of view of safety,pollution and resources.

Ans 1: Advantage of nuclear power are given below
1. Nuclear fission energy,release a highly reduced amount of the gases into the air,resulting in a slower rate of global warming and pollution.
2. The energy is quick to create;meaning that they are able to make a large amount of some form of emergency required it.
3. Much more energy is produced.

Question # 6

Define nuclear fission.

Ans 1: Such a reaction in which a heavy nucleus like that of uranium splits up into two nuclei of roughly equal size along with the emission of energy is called fission reaction.

Question # 7

Define Half line and discuss its dependence.

Ans 1: The half line T_1/2of a radioactive elements is that period in which half of the atom decay.
Dependence: The number of decaying atoms is proportional to the number of atoms present in the beginning of the period and is proportional to time interval.

Question # 8

What is meant by dose of radiation?What is its SI units?

Ans 1: Radiation dose is a measure of the amount of exposure to radiation.There are three kinds of dose:
1. Absorbed dose: it is the amount of energy deposited by radiation in a mass.
D=E/m its SI unit is Gy.
2.Equivalent dose: It is calculated for individual organ
D_e=D*RBE
3.Effective dose: It is calculated for the whole body,It is also measured ni Sv.

Question # 9

A particle which produce more ionization ,is less penetrating.Why?

Ans 1: A particle with great power loses large amount of energy for small distances.That is,it produces more ionization but is less penetration.

Question # 10

What is radioactivity decay?Give an example.

Ans 1: The emission of radiations from elements having charge number Z greater than 82 is called radioactivity or radioactive decay.
The emission of an a-particle from radium-226 ,result in the formation of radon gas.

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ICS Part 2 Physics Chapter 21 Short Questions Preparation

12th Class PhysicsShort Questions Preparation

12th Class Physics Chapter Wise Preparation

Online Short Questions For Chapter 10 "ICS Part 2 Physics Chapter 21 Short Questions Preparation "

Physics - ICS Part 2 Physics Chapter 21 Short Questions Preparation

What do you mean by quark?

Discuss the advantage and disadvantage of nuclear power compare to the use of fossil fuel generated power.

Differentiate between controlled and uncontrolled reaction.

Define half-line of radioactive element.How is it related with decay constant?

Discuss the advantages of fission power from point of view of safety,pollution and resources.

Define nuclear fission.

Define Half line and discuss its dependence.

What is meant by dose of radiation?What is its SI units?

A particle which produce more ionization ,is less penetrating.Why?

What is radioactivity decay?Give an example.

Prepare Complete Set Wise Questions For Chapter 10 "ICS Part 2 Physics Chapter 21 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

Set 5

ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 1

What do you mean by quark?

Discuss the advantage and disadvantage of nuclear power compare to the use of fossil fuel generated power.

Differentiate between controlled and uncontrolled reaction.

Define half-line of radioactive element.How is it related with decay constant?

Discuss the advantages of fission power from point of view of safety,pollution and resources.

Define nuclear fission.

Define Half line and discuss its dependence.

What is meant by dose of radiation?What is its SI units?

A particle which produce more ionization ,is less penetrating.Why?

What is radioactivity decay?Give an example.

ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 2

If you swallowed a alpha source and beta source ,which would be more dangerous to you ?Explain

Discuss the advantage and disadvantage of nuclear power compare to the use of fossil fuel generated power.

How energy released when 1 amu converted into energy?

What is meant by dose of radiation?What is its SI units?

Briefly describe the term radiography.

Describe a brief account of interaction of various types of radiations with matter.

Define absorbed dose and Gray.

Define decay constant.

What is the function of control rods in nuclear reactor?

Which radiation does would deposit more energy to the body(a)10 m Gy to the hand (b)1m Gy dose to entire body.

ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 3

Briefly give the use of (a)Wilson cloud chamber (b)G.M counter.

Differentiate between parent and daughter element.

What is radioactivity decay?Give an example.

How energy released when 1 amu converted into energy?

What are the relation between decay constantλand the half-line of a radioactive element?

What information if revealed by the length and shape of track of an incident particle in Wilson Cloud Chamber?

Describe a brief account of interaction of various types of radiations with matter.

Protons and neutron are formed by what types of quarks?

What is radioactive tracer?Give its one application each in industry and medicine.

Define decay constant.

ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 4

A particle which produce more ionization ,is less penetrating.Why?

Define decay constant.

Discuss the advantage and disadvantage of nuclear power compare to the use of fossil fuel generated power.

Which radiation does would deposit more energy to the body(a)10 m Gy to the hand (b)1m Gy dose to entire body.

What information if revealed by the length and shape of track of an incident particle in Wilson Cloud Chamber?

Protons and neutron are formed by what types of quarks?

What is radioactive tracer?Give its one application each in industry and medicine.

What are isotopes?What do you have in common?

Discuss the advantages of fission power from point of view of safety,pollution and resources.

Write names of hydrogen isotopes.

ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 5

Write name of different quarks.

Why moderators are used in the core of nuclear reactor?

Differentiate between Baryons and Mesons.

Define Hadrons and Leptons.

Describe the principle of operation of solid state detector.

What are isotopes?What do you have in common?

Distinguished between nuclear fission and nuclear fusion.

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Short Questions Preparation