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

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

  • Ans 1:
    1. An a particle has well defined range in a medium ,before coming to rest which is called range if a-particle.
    2. It lose its energy due to excitation and ionization of atoms and molecules in matter.
  • Ans 2: b-particle:
    1. The ionizing ability of b particles is about 100 times less than that of a alpha particle.
    2. The range of b particle is 100 times more than that of a- particle.
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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

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

  • Ans 1:
    1. An a particle has well defined range in a medium ,before coming to rest which is called range if a-particle.
    2. It lose its energy due to excitation and ionization of atoms and molecules in matter.
  • Ans 2: b-particle:
    1. The ionizing ability of b particles is about 100 times less than that of a alpha particle.
    2. The range of b particle is 100 times more than that of a- particle.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 2

Question # 1

Differentiate between controlled and uncontrolled reaction.

  • Ans 1: To maintain a sustained controlled nuclear reaction,for every 2 or 3 neutrons released ,only one must be allowed to strike another uranium nucleus.it is called controlled chain reaction.
  • Ans 2: If more than one neutron produces further fission then it will grow uncontrolled and called uncontrolled chain reaction.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 3

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 - Set 4

Question # 1

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

Question # 1

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.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation

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