ICS Part 2 Physics Chapter 21 Short Questions Preparation

Question # 1

What are isotopes?What do you have in common?

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 # 2

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 # 3

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 # 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

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 # 6

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 # 7

State two characteristics of beta particle.

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

Question # 8

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

Ans 1: Solid state detector can count very fast than gas filled detector.
Solid state detector is much smaller in size.
It operates at low voltage.

Question # 9

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 # 10

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.

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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 are isotopes?What do you have in common?

Define fission and fusion reaction.

What do you mean by quark?

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

What do you mean by critical mass and critical volume?

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

State two characteristics of beta particle.

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

Protons and neutron are formed by what types of quarks?

Differentiate between parent and daughter element.

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 are isotopes?What do you have in common?

Define fission and fusion reaction.

What do you mean by quark?

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

What do you mean by critical mass and critical volume?

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

State two characteristics of beta particle.

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

Protons and neutron are formed by what types of quarks?

Differentiate between parent and daughter element.

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

What is self-quenching in Geiger Muller Counter?

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

What factor make a Fusion reaction difficult to achieve?

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

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?

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

State two characteristics of beta particle.

What is half line?

How energy released when 1 amu converted into energy?

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

What is half line?

Write name of different quarks.

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

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?

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

Why moderators are used in the core of nuclear reactor?

Define background radiations.What are their sources?

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

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

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

What do you mean by critical mass and critical volume?

What are isotopes?What do you have in common?

Define Half line and discuss its dependence.

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

Write name of different quarks.

Wh Geiger counter is not suitable for fast counting?

Differentiate between controlled and uncontrolled reaction.

Define nuclear fission.

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 absorbed dose and Gray.

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

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

Describe the principle of operation of solid state detector?

What are thermal reactors?

Define mass defect and binding energy.

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

Define decay constant.

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

12th Class Physics
Short Questions Preparation