ICS Part 2 Physics Chapter 21 Short Questions Preparation

Question # 1

State two characteristics of beta particle.

Ans 1: They are negatively charged particle.
Their penetration power is high.

Question # 2

What is the function of control rods in nuclear reactor?

Ans 1: Controls rods made of Cadmium or Boron are used for the control of number of neutrons,so that of all the neutrons produced in fission ,only one neutrons produces further fission reaction.
In case of emergency or for repair purpose control rods are used to stop the chain reaction and shut down the reactor.

Question # 3

Define fission and fusion reaction.

Ans 1: Fission: 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.
Ans 2: Fusion: A reaction in which two light of nuclei merge to form a heavy nucleus is called fusion reaction.It requires very high temperature.

Question # 4

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 # 5

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

Ans 1: As alpha particle have greater energy and ionizing power than beta particle,so alpha particle are more dangerous than beta particle.
Critical volume:The volume of critical mass is called critical volume.

Question # 6

Define Hadrons and Leptons.

Ans 1: Hadrons: These are not elementary particle,They are composed of other elementary particle called quarks.The example of hadrons are protons,neutrons,mesons etc,They experience strong nuclear force.
Laptons: The are elementary particles.They do not experience strong nuclear force,The example of laptons are electrons .muons and neutrinos etc.

Question # 7

What factor make a Fusion reaction difficult to achieve?

Ans 1: A fusion reaction requires large energy and temperature ,up to million degrees centigrades,So a fusion reaction is difficult to achieve.

Question # 8

Describe the principle of operation of solid state detector.

Ans 1: The principle of operation of solid state detector is based upon the production of electron-hole pair to cause a pulse of current.

Question # 9

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 # 10

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.

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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

State two characteristics of beta particle.

What is the function of control rods in nuclear reactor?

Define fission and fusion reaction.

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

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

Define Hadrons and Leptons.

What factor make a Fusion reaction difficult to achieve?

Describe the principle of operation of solid state detector.

Define nuclear fission.

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

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

State two characteristics of beta particle.

What is the function of control rods in nuclear reactor?

Define fission and fusion reaction.

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

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

Define Hadrons and Leptons.

What factor make a Fusion reaction difficult to achieve?

Describe the principle of operation of solid state detector.

Define nuclear fission.

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

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

Define decay constant.

Define mass defect and binding energy.

Define nuclear fission.

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

What is half line?

What do you mean by quark?

How alpha and beta may ionize an atom without directly hitting the electrons?

Define background radiations.What are their sources?

Protons and neutron are formed by what types of quarks?

What is radioactivity decay?Give an example.

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

Define nuclear fission.

If nucleus has a life of one year,does this mean that it will be completely decayed after two years?

Distinguished between nuclear fission and nuclear fusion.

Define fission and fusion reaction.

Define Hadrons and Leptons.

Describe the principle of operation of solid state detector?

Protons and neutron are formed by what types of quarks?

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

Name the basic forces of nature.

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

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

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

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

Protons and neutron are formed by what types of quarks?

Define absorbed dose and Gray.

How can radioactivity help in the treatment of cancer?

What do you know about Radioactivity?

Differentiate between parent and daughter element.

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

Differentiate between Baryons and Mesons.

Why are heavy nuclei unstable?

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

Write down two advantages of solid state detector over geiger muller counter.

What are isotopes?What do you have in common?

State two characteristics of beta particle.

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

How alpha and beta may ionize an atom without directly hitting the electrons?

Why are heavy nuclei unstable?

Differentiate between parent and daughter element.

12th Class Physics
Short Questions Preparation