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

What is the function of control rods in nuclear reactor?

  • Ans 1: Controls rods made of Cadmium or Boron are used for the control of number of neutrons,so that of all the neutrons produced in fission ,only one neutrons produces further fission reaction.
    In case of emergency or for repair purpose control rods are used to stop the chain reaction and shut down the reactor.
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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

What is the function of control rods in nuclear reactor?

  • Ans 1: Controls rods made of Cadmium or Boron are used for the control of number of neutrons,so that of all the neutrons produced in fission ,only one neutrons produces further fission reaction.
    In case of emergency or for repair purpose control rods are used to stop the chain reaction and shut down the reactor.
Submit

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

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 3

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 - Set 4

Question # 1

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

Question # 1

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

  • Ans 1: The relation between decay constantλand the half line (T1/2) isλT1/2=0.693
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ICS Part 2 Physics Chapter 21 Short Questions Preparation

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