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12th Class Physics
Short Questions Preparation
Start Chapter 21 Preparation
12th Class Physics Chapter Wise Preparation
Online Short Questions For Chapter 10 "ICS Part 2 Physics Chapter 21 Short Questions Preparation "
Try The Short Questions For ICS Part 2 Physics Chapter 21 Short Questions Preparation
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Total Questions10
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Available Sets5
Physics - ICS Part 2 Physics Chapter 21 Short Questions Preparation
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.
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 1
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.
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 2
Question # 1
How energy released when 1 amu converted into energy?
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Ans 1: 1 amu= 1.66 x10-27kgthe energy of 1 amu is 1 amu =1.494 x10-10J1 amu= 931 MeV
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 3
Question # 1
What is radioactivity decay?Give an example.
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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.
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 4
Question # 1
What do you understand by "background radiation "?State two source of this radiation?
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Ans 1: When no radioactive source is placed near the radiation detector,it records radiation,These radiations are called background radiations..Its source are
- Cosmic rays
- presence of radioactive substance Earth crust and atmosphere.
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 5
Question # 1
What is self-quenching in Geiger Muller Counter?
- Ans 1: A small amount of gas is added into the GM counter is called self quenching or internal quenching,In GM counter the phenomena of quenching is to save the counter from spurious or false counts.
