Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
.jpg)
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
-
Total Questions10
-
Available Sets5
Physics - ICS Part 2 Physics Chapter 21 Short Questions Preparation
Question # 1
Define nuclear fission.
- Ans 1: Such a reaction in which a heavy nucleus like that of uranium splits up into two nuclei of roughly equal size along with the emission of energy is called fission reaction.
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 1
Question # 1
Define nuclear fission.
- Ans 1: Such a reaction in which a heavy nucleus like that of uranium splits up into two nuclei of roughly equal size along with the emission of energy is called fission reaction.
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 2
Question # 1
What are isotopes?What do they have common and what are their difference.
- Ans 1: Isotopes are such nuclei of an element that have the same charge number Z but have different mass number A.It means,in the nucleus the number of protons is the same but the number of neutrons is different.
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 3
Question # 1
What are thermal reactors?
- Ans 1: The thermal reactors are called thermal reactors because the neutrons must be slowed down to thermal energies to produce further fission,They use natural uranium or slightly enriched uranium as fuel.
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 4
Question # 1
Wh Geiger counter is not suitable for fast counting?
- Ans 1: Geiger counter is not suitable for fast counting because of its longer dead time.The positive ions take several time as long to reach the outer cathode,because positive ions are very massive than the electrons.During this time further incoming particle can not be counted,This time is called as the dead time of counter which delays fast counting system.
ICS Part 2 Physics Chapter 21 Short Questions Preparation - Set 5
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.
