Question # 1

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 # 2

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 # 3

What do you know about Radioactivity?

Ans 1: The elements having charge number Z>82 are unstable and they emit invisible radiations which affect the photographic plate.Such element are called radioactive elements and this process is called radioactivity.

Question # 4

Protons and neutron are formed by what types of quarks?

Ans 1: Protons is formed by two up and one down quarks.Neutron is formed by two down and one up quarks.

Question # 5

Define background radiations.What are their sources?

Ans 1: When no radioactive source is placed near the radiations detector,it records radiations,These radiations are called background radiations.
Its source are
1. The cosmic rays which come to us from outer space.
2. Radioactive substance present is the Earth's crest.
3. Radioactive potassium and carbon in the body.

Question # 6

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 # 7

What are thermal reactors?

Ans 1: The thermal reactors are called thermal reactors because the neutrons must be slowed down to thermal energies to produce further fission,They use natural uranium or slightly enriched uranium as fuel.

Question # 8

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 # 9

Define mass defect and binding energy.

Ans 1: Mass defect: The mass of the nucleus is always less than the total mass of the protons and neutrons that make up the nucleus,The difference of the two masses is called mass defect.
Binding energy:The missing mass is converted into energy at the formation of the nucleus and is called binding energy.

Question # 10

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

Ans 1: No it will not decay completely after two years.
Numbers of atom at initial stage =N_o
number of atoms decayed after first year =1/2N_o

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Online Short Questions Preparations

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

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

Describe the principle of operation of solid state detector.

What do you know about Radioactivity?

Protons and neutron are formed by what types of quarks?

Define background radiations.What are their sources?

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

What are thermal reactors?

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

Define mass defect and binding energy.

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

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

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

Describe the principle of operation of solid state detector.

What do you know about Radioactivity?

Protons and neutron are formed by what types of quarks?

Define background radiations.What are their sources?

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

What are thermal reactors?

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

Define mass defect and binding energy.

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

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

Protons and neutron are formed by what types of quarks?

What is the function of control rods in nuclear reactor?

Describe the principle of operation of solid state detector?

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

Why moderators are used in the core of nuclear reactor?

Briefly describe the term radiography.

What do you mean by critical mass and critical volume?

Differentiate between parent and daughter element.

Write name of different quarks.

Define mass defect and binding energy.

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

Describe the principle of operation of solid state detector?

Define Hadrons and Leptons.

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

What do you mean by quark?

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

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

Differentiate between controlled and uncontrolled reaction.

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

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

What do you know about Radioactivity?

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

What do you know about Radioactivity?

What are isotopes?What do they have common and what are their difference.

Define decay constant.

Distinguished between nuclear fission and nuclear fusion.

What is radioactivity decay?Give an example.

Describe the principle of operation of solid state detector?

Why are heavy nuclei unstable?

Name the basic forces of nature.

Write names of hydrogen isotopes.

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

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

Distinguished between nuclear fission and nuclear fusion.

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

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 is half line?

Define absorbed dose and Gray.

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

Write name of different quarks.

How energy released when 1 amu converted into energy?

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