ICS Part 2 Physics Chapter 21 Short Questions Preparation


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Short Questions Preparation

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Physics - ICS Part 2 Physics Chapter 21 Short Questions Preparation

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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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 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.
Submit

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

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 4

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 5

Question # 1

What is radioactivity decay?Give an example.

  • Ans 1: The emission of radiations from elements having charge number Z greater than 82 is called radioactivity or radioactive decay.
    The emission of an a-particle from radium-226 ,result in the formation of radon gas.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation

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