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

Protons and neutron are formed by what types of quarks?

  • Ans 1: Protons is formed by two up and one down quarks.Neutron is formed by two down and one up quarks.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 1

Question # 1

Protons and neutron are formed by what types of quarks?

  • Ans 1: Protons is formed by two up and one down quarks.Neutron is formed by two down and one up quarks.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 2

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 3

Question # 1

What factor make a Fusion reaction difficult to achieve?

  • Ans 1: A fusion reaction requires large energy and temperature ,up to million degrees centigrades,So a fusion reaction is difficult to achieve.
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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: The principle of operation of solid state detector is based upon the production of electron-hole pair to cause a pulse of current.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 5

Question # 1

What is meant by dose of radiation?What is its SI units?

  • Ans 1: Radiation dose is a measure of the amount of exposure to radiation.There are three kinds of dose:
    1. Absorbed dose: it is the amount of energy deposited by radiation in a mass.
    D=E/m its SI unit is Gy.
    2.Equivalent dose: It is calculated for individual organ
    De=D*RBE
    3.Effective dose: It is calculated for the whole body,It is also measured ni Sv.
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ICS Part 2 Physics Chapter 21 Short Questions Preparation