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Online Short Questions For Chapter 10 "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

Define absorbed dose and Gray.

  • Ans 1: Absorbed dose:It is defined as the amount of energy absorbed from an ionizing radiation per unit mass of the absorbing body i.e.
    Absorbed dose=energy/mass
    Gray: it is defined as the amount of energy equal to one joule absorbed by a body of mass 1kg i.e
    gray=1 joule/1 kg
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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 absorbed dose and Gray.

  • Ans 1: Absorbed dose:It is defined as the amount of energy absorbed from an ionizing radiation per unit mass of the absorbing body i.e.
    Absorbed dose=energy/mass
    Gray: it is defined as the amount of energy equal to one joule absorbed by a body of mass 1kg i.e
    gray=1 joule/1 kg
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 2

Question # 1

Why moderators are used in the core of nuclear reactor?

  • Ans 1: The moderator ae used in the core to slow the neutrons down so that they can be captured and keep the chain reaction going.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 3

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 4

Question # 1

Briefly describe the term radiography.

  • Ans 1: The radiography is a technique used in medicine such as internal imaging of the brain to determine the size and location of the tumor precisely.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 5

Question # 1

Why are heavy nuclei unstable?

  • Ans 1: Heavy nuclei are unstable because their binding energy per nucleon is less than lighter nuclei.So less energy is required to break heavy nuclei and they become unstable.
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