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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 alpha and beta may ionize an atom without directly hitting the electrons?
- Ans 1: As alpha and beta are electrically charged particle,so they can cause ionization without hitting an atom either by,repellings the electron of target particle.
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 3
Question # 1
What are the relation between decay constantλand the half-line of a radioactive element?
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Ans 1: The relation between decay constantλand the half line (T1/2) isλT1/2=0.693
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 4
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 5
Question # 1
Define Hadrons and Leptons.
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Ans 1: Hadrons: These are not elementary particle,They are composed of other elementary particle called quarks.The example of hadrons are protons,neutrons,mesons etc,They experience strong nuclear force.Laptons: The are elementary particles.They do not experience strong nuclear force,The example of laptons are electrons .muons and neutrinos etc.
