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

Define decay constant.

  • Ans 1: Decay constant of any element is to the fraction of the decaying atoms per unit time.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 1

Question # 1

Define decay constant.

  • Ans 1: Decay constant of any element is to the fraction of the decaying atoms per unit time.
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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

What is half line?

  • Ans 1: The half line T1/2of a radioactive elements is that period in which half of the atoms decay.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 4

Question # 1

Describe the principle of operation of solid state detector?

  • Ans 1: A solid state detector is a specially designed p-n junction operating under a reversed bias in which electron-hole pairs are produced by the incident radiation to cause a current pulse to flow through the external circuit.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 5

Question # 1

A particle which produce more ionization ,is less penetrating.Why?

  • Ans 1: A particle with great power loses large amount of energy for small distances.That is,it produces more ionization but is less penetration.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation

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