ICS Part 2 Physics Chapter 21 Short Questions Preparation

Question # 1

What is half line?

Ans 1: The half line T_1/2of a radioactive elements is that period in which half of the atoms decay.

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 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.

Question # 4

Define decay constant.

Ans 1: Decay constant of any element is to the fraction of the decaying atoms per unit time.

Question # 5

Differentiate between parent and daughter element.

Ans 1: The change of an element into a new element due to emission of radiation is called radioactive decay.The original atom is called parent element and the element formed due to this decay is called daughter element.

Question # 6

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 # 7

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

Ans 1: When no radioactive source is placed near the radiation detector,it records radiation,These radiations are called background radiations..
Its source are
1. Cosmic rays
2. presence of radioactive substance Earth crust and atmosphere.

Question # 8

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

Ans 1: Isotopes are such nuclei of an element that have the same charge number Z but have different mass number A.It means,in the nucleus the number of protons is the same but the number of neutrons is different.

Question # 9

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 # 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

What is half line?

Describe the principle of operation of solid state detector.

What do you mean by critical mass and critical volume?

Define decay constant.

Differentiate between parent and daughter element.

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

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

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

Briefly describe the term radiography.

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

What is half line?

Describe the principle of operation of solid state detector.

What do you mean by critical mass and critical volume?

Define decay constant.

Differentiate between parent and daughter element.

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

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

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

Briefly describe the term radiography.

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 Half line and discuss its dependence.

What are isotopes?What do you have in common?

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

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

Define mass defect and binding energy.

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

Wh Geiger counter is not suitable for fast counting?

What do you mean by quark?

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

How energy released when 1 amu converted into energy?

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

Differentiate between parent and daughter element.

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

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

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

Define background radiations.What are their sources?

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

Define mass defect and binding energy.

Distinguished between nuclear fission and nuclear fusion.

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

Name the basic forces of nature.

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

How can radioactivity help in the treatment of cancer?

Differentiate between controlled and uncontrolled reaction.

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

Briefly describe the term radiography.

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

Define Half line and discuss its dependence.

Wh Geiger counter is not suitable for fast counting?

What do you mean by critical mass and critical volume?

What is half line?

Why moderators are used in the core of nuclear reactor?

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

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

Differentiate between parent and daughter element.

What factor make a Fusion reaction difficult to achieve?

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

Protons and neutron are formed by what types of quarks?

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

Define mass defect and binding energy.

12th Class Physics
Short Questions Preparation