ICS Part 2 Physics Chapter 21 Short Questions Preparation

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

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 # 3

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 # 4

Briefly describe the term radiography.

Ans 1: The radiography is a technique used in medicine such as internal imaging of the brain to determine the size and location of the tumor precisely.

Question # 5

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

Ans 1: In a wilson cloud chamber
1. Alpha particle have larger mass and greater ionizing power so its path is straight.
2. Beta particle have less mass and less ionizing power,so its path is thinner shorter and discontinuous.
3. Gamma particle have no mass and high penetrating power,so its leaves no definite track along its path,

Question # 6

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 # 7

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 # 8

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

Ans 1:
1. An a particle has well defined range in a medium ,before coming to rest which is called range if a-particle.
2. It lose its energy due to excitation and ionization of atoms and molecules in matter.
Ans 2: b-particle:
1. The ionizing ability of b particles is about 100 times less than that of a alpha particle.
2. The range of b particle is 100 times more than that of a- particle.

Question # 9

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 # 10

What do you mean by critical mass and critical volume?

Ans 1: The mass of uranium in which one neutron out of all neutron out of all neutron produced in one fission reaction produces further fission reaction is called critical mass.

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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

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

What factor make a Fusion reaction difficult to achieve?

Protons and neutron are formed by what types of quarks?

Briefly describe the term radiography.

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

Differentiate between controlled and uncontrolled reaction.

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

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

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

What do you mean by critical mass and critical volume?

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

What factor make a Fusion reaction difficult to achieve?

Protons and neutron are formed by what types of quarks?

Briefly describe the term radiography.

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

Differentiate between controlled and uncontrolled reaction.

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

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

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

What do you mean by critical mass and critical volume?

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

What is half line?

Distinguished between nuclear fission and nuclear fusion.

Why are heavy nuclei unstable?

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

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

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

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

Why moderators are used in the core of nuclear reactor?

Define nuclear fission.

Write names of hydrogen isotopes.

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

State two characteristics of beta particle.

Describe the principle of operation of solid state detector.

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

Differentiate between controlled and uncontrolled reaction.

Describe the principle of operation of solid state detector?

Write names of hydrogen isotopes.

How can radioactivity help in the treatment of cancer?

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

Define background radiations.What are their sources?

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

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

Differentiate between controlled and uncontrolled reaction.

What do you mean by critical mass and critical volume?

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

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

What is radioactivity decay?Give an example.

Write names of hydrogen isotopes.

Define decay constant.

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

Differentiate between parent and daughter element.

Why moderators are used in the core of nuclear reactor?

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

Define nuclear fission.

Define Half line and discuss its dependence.

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

What do you understand by "background radiation "?State two source of this radiation?

What do you know about Radioactivity?

Differentiate between controlled and uncontrolled reaction.

Define mass defect and binding energy.

12th Class Physics
Short Questions Preparation