ICS Part 2 Physics Chapter 21 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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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 Half line and discuss its dependence.

  • Ans 1: The half line T1/2of a radioactive elements is that period in which half of the atom decay.
    Dependence: The number of decaying atoms is proportional to the number of atoms present in the beginning of the period and is proportional to time interval.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 3

Question # 1

Write names of hydrogen isotopes.

  • Ans 1: Three isotopes of hydrogen are:
    1. Protium
    2. Deuterium
    3. Tritium
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 4

Question # 1

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

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.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation