ICS Part 2 Physics Chapter 21 Short Questions Preparation


12th Class Physics
Short Questions Preparation

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Physics - ICS Part 2 Physics Chapter 21 Short Questions Preparation

Question # 1

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.
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Prepare Complete Set Wise Questions For Chapter 10 "ICS Part 2 Physics Chapter 21 Short Questions Preparation "

ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 1

Question # 1

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

Question # 1

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 - Set 3

Question # 1

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

  • Ans 1: A particle with great power loses large amount of energy for small distances.That is,it produces more ionization but is less penetration.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 4

Question # 1

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

Question # 1

Differentiate between Baryons and Mesons.

  • Ans 1: Baryons:The particle equal in mass greater than protons are called baryons.It is made by 3 quarks.

  • Ans 2: Mesons: The particle which are lighter in mass than protons are called mesons,A pair of quark and an antiquark makes as meson.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation

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