Question # 1

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

Ans 1: Radioactive tracer is a radioactive isotope which acts as an indicator or tracer that makes it possible to follow the course of a chemical or biological process.They are used in
1. Medicine to detect malignant tumors
2. Agriculture to study the uptake of a fertilizer by a plant.

Question # 2

How energy released when 1 amu converted into energy?

Ans 1: 1 amu= 1.66 x10^-27kg

the energy of 1 amu is 1 amu =1.494 x10^-10J
1 amu= 931 MeV

Question # 3

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

Ans 1: Wilson Cloud Chamber:It provides information about the change in mass and energy of radiating particles.
G.M Counter:It is used to determine the range and penetrating power of ionizing particles.

Question # 4

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 # 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

Why are heavy nuclei unstable?

Ans 1: Heavy nuclei are unstable because their binding energy per nucleon is less than lighter nuclei.So less energy is required to break heavy nuclei and they become unstable.

Question # 7

State two characteristics of beta particle.

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

Question # 8

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 # 9

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 # 10

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

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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

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

How energy released when 1 amu converted into energy?

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

What do you mean by quark?

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

Why are heavy nuclei unstable?

State two characteristics of beta particle.

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

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

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

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

How energy released when 1 amu converted into energy?

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

What do you mean by quark?

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

Why are heavy nuclei unstable?

State two characteristics of beta particle.

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

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

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

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

Differentiate between controlled and uncontrolled reaction.

Define nuclear fission.

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

Describe the principle of operation of solid state detector.

Protons and neutron are formed by what types of quarks?

Distinguished between nuclear fission and nuclear fusion.

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

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

What is self-quenching in Geiger Muller Counter?

Why moderators are used in the core of nuclear reactor?

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

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

What is self-quenching in Geiger Muller Counter?

Define Hadrons and Leptons.

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

What are thermal reactors?

What is the function of control rods in nuclear reactor?

Write names of hydrogen isotopes.

How energy released when 1 amu converted into energy?

Protons and neutron are formed by what types of quarks?

What are isotopes?What do you have in common?

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

Name the basic forces of nature.

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.

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

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

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

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

Distinguished between nuclear fission and nuclear fusion.

What do you mean by quark?

Wh Geiger counter is not suitable for fast counting?

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

State two characteristics of beta particle.

How energy released when 1 amu converted into energy?

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

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

Write names of hydrogen isotopes.

Protons and neutron are formed by what types of quarks?

What do you know about Radioactivity?

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

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