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

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 # 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

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 # 5

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.

Question # 6

Write name of different quarks.

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

Question # 7

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 # 8

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

Ans 1: No it will not decay completely after two years.
Numbers of atom at initial stage =N_o
number of atoms decayed after first year =1/2N_o

Question # 9

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

Ans 1: Since
absorbed dose=D=energy/mass
energy=D * Mass
since the mass of whole body is much greater than mass of the hand,therefore 1 Gy dose given to the entire body deposit more energy.

Question # 10

Define decay constant.

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

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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?

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

Protons and neutron are formed by what types of quarks?

How energy released when 1 amu converted into energy?

How can radioactivity help in the treatment of cancer?

Write name of different quarks.

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

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

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 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 are isotopes?What do you have in common?

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

Protons and neutron are formed by what types of quarks?

How energy released when 1 amu converted into energy?

How can radioactivity help in the treatment of cancer?

Write name of different quarks.

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

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

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 decay constant.

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

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

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

What is radioactivity decay?Give an example.

Define mass defect and binding energy.

Define absorbed dose and Gray.

What do you mean by quark?

Name the basic forces of nature.

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

Describe the principle of operation of solid state detector?

Why are heavy nuclei unstable?

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

Write names of hydrogen isotopes.

What is half line?

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

Protons and neutron are formed by what types of quarks?

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

Differentiate between controlled and uncontrolled reaction.

Why moderators are used in the core of nuclear reactor?

What is radioactivity decay?Give an example.

How energy released when 1 amu converted into energy?

What is self-quenching in Geiger Muller Counter?

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

Define Hadrons and Leptons.

Describe the principle of operation of solid state detector.

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

How can radioactivity help in the treatment of cancer?

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

Define decay constant.

Define fission and fusion reaction.

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 names of hydrogen isotopes.

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

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

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

Define absorbed dose and Gray.

How can radioactivity help in the treatment of cancer?

Differentiate between parent and daughter element.

Briefly describe the term radiography.

State two characteristics of beta particle.

Name the basic forces of nature.

12th Class Physics
Short Questions Preparation