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

Write name of different quarks.

Ans 1: The name of different quarks are as follows
Up,Down-Strange ,Charm,Top,Bottom

Question # 3

Name the basic forces of nature.

Ans 1: The basic forces of nature are
1. Gravitational force
2. Electromagnetic force
3. Weak nuclear force
4. Strong nuclear force

Question # 4

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 # 5

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 # 6

Distinguished between nuclear fission and nuclear fusion.

Ans 1: Nuclear Fission: Such a reaction in which a heavy nuclei like that of uranium splits up into two of roughly equal size along with the emission of energy is called fission reaction.
Ans 2: Nuclear Fusion:A reaction in which two lights nuclei merge to form a heavy nucleus is called fusion reaction.It require very high temperature.

Question # 7

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 # 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

How can radioactivity help in the treatment of cancer?

Ans 1: It helps in treatment of cancer:
1. Cobalt-60 is used in radiotherapy.
2. For skin cancer ,phosphorus -32 or strontium-9 is used.
3. Radioactive iodine-131 is used to cure cancer of thyroid gland.

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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?

Write name of different quarks.

Name the basic forces of nature.

Define mass defect and binding energy.

How energy released when 1 amu converted into energy?

Distinguished between nuclear fission and nuclear fusion.

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

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.

How can radioactivity help in the treatment of cancer?

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?

Write name of different quarks.

Name the basic forces of nature.

Define mass defect and binding energy.

How energy released when 1 amu converted into energy?

Distinguished between nuclear fission and nuclear fusion.

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

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.

How can radioactivity help in the treatment of cancer?

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

What is self-quenching in Geiger Muller Counter?

What is radioactivity decay?Give an example.

Differentiate between controlled and uncontrolled reaction.

Describe the principle of operation of solid state detector?

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

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

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

Distinguished between nuclear fission and nuclear fusion.

Wh Geiger counter is not suitable for fast counting?

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 3

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

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

State two characteristics of beta particle.

Wh Geiger counter is not suitable for fast counting?

Define Hadrons and Leptons.

Define decay constant.

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

What is radioactivity decay?Give an example.

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

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

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

Define fission and fusion reaction.

What are isotopes?What do you have in common?

Define nuclear fission.

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

What do you mean by critical mass and critical volume?

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

Why moderators are used in the core of nuclear reactor?

Protons and neutron are formed by what types of quarks?

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

What is self-quenching in Geiger Muller Counter?

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

Define fission and fusion reaction.

What do you mean by critical mass and critical volume?

State two characteristics of beta particle.

Differentiate between parent and daughter element.

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

Differentiate between Baryons and Mesons.

What are thermal reactors?

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Short Questions Preparation