Last Updated on December 26, 2024 by XAM CONTENT
Hello students, we are providing case study questions for class 12 physics. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 12 physics. In this article, you will find case study questions for cbse class 12 physics chapter 13 Nuclei.
| Chapter | Nuclei |
| Type of Questions | Case Study Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 12 |
| Subject | Physics |
| Unit | Unit 8 Atoms and Nuclei |
| Useful for | Class 12 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 12 Physics Chapterwise Case Study |
Case Study Questions on Nuclei
Questions
Question 1:
Neutrons and protons are identical particle in the sense that their masses are nearly the same and the force, called nuclear force, does into distinguish them. Nuclear force is the strongest force. Stability of nucleus is determined by the neutron-proton ratio or mass defect or packing fraction. Shape of nucleus is calculated by quadrupole moment and spin of nucleus depends on even or odd mass number. Volume of nucleus depends on the mass number. Whole mass of the atom (nearly 99%) is centered at the nucleus.
Read the given passage carefully and give the answer of the following questions:
Q. 1. What is the range of nuclear force?
Q. 2. A force between two protons is same as the force between proton and neutron. What is the nature of the force?
Q. 3. Two protons are kept at a separation of 40 Å. If Fn is the nuclear force and Fe is the electrostatic force between them, then what is the relation between Fn and Fe?
Q. 4. All the nucleons in an atom are held by which forces?
Answers
1. The nuclear force is of short range and the range of nuclear force is the order of 1.4 × 10-15m.
2. The nature of the force is strong nuclear force.
3. Nuclear force is much stronger than the electrostatic force inside the nucleus i.e., at distances of the order of fermi. At 40 Å, nuclear force is ineffective and only electrostatic force of repulsion is present. This is very high at this distance because nuclear force is not acting now and the gravitational force is very feeble. Thus, Fnuclear << Felectrostatic in this case.
4. All the nucleons in an atom are held by nuclear forces.
Also check
Case study questions for other chapters of class 12 physics is given below.
- Semiconductor Electronics Class 12 Case Study Questions Physics Chapter 14
- Nuclei Class 12 Case Study Questions Physics Chapter 13
- Atoms Class 12 Case Study Questions Physics Chapter 12
- Dual Nature of Radiation and Matter Class 12 Case Study Questions Physics Chapter 11
- Wave Optics Class 12 Case Study Questions Physics Chapter 10
- Ray Optics and Optical Instruments Class 12 Case Study Questions Physics Chapter 9
- Electromagnetic Waves Class 12 Case Study Questions Physics Chapter 8
- Alternating Current Class 12 Case Study Questions Physics Chapter 7
- Electromagnetic Induction Class 12 Case Study Questions Physics Chapter 6
- Magnetism and Matter Class 12 Case Study Questions Physics Chapter 5
- Moving Charges and Magnetism Class 12 Case Study Questions Physics Chapter 4
- Current Electricity Class 12 Case Study Questions Physics Chapter 3
- Electrostatic Potential and Capacitance Class 12 Case Study Questions Physics Chapter 2
- Electric Charges and Fields Class 12 Case Study Questions Physics Chapter 1
- Case Study Questions for Class 12 Physics
We hope the given case study questions for Nuclei Class 12 helps you in your learning.
Download eBooks for CBSE Class 12 Physics (Exam Special)
- 120 Case Study Questions for Class 12 Physics
- 320 Assertion Reasoning Questions for Class 12 Physics
- 95 Reasoning Based Questions for Class 12 Physics
- Important Derivation for Class 12 Physics
- MCQ Questions for Class 12 Physics
- Chapter Test for Class 12 Physics with Solutions
- 230 Important Numerical for Class 12 Physics
- 75 Important Diagrams & Graphs for Class 12 Physics
Topics from which case study questions may be asked
- Alpha-Particle Scattering Experiment
- Rutherford’s Model of Atom
- Bohr Model of Hydrogen Atom
- Expression for Radius of nth Orbit
- Velocity and Energy of Electron in nth Orbit
- Hydrogen Line Spectra (Qualitative Treatment Only)
When subatomic particles undergo reactions, energy is conserved, but mass is not necessarily conserved. However, a particle’s mass contributes to its total energy, in accordance with Einstein’s famous equation, E = mc2.
For further practice on case study questions related to Nuclei Class 12 Physics, we recommend exploring the link given below.
Frequently Asked Questions (FAQs) on Nuclei Case Study Questions
Q1: What are case study questions for CBSE examinations?
A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.
Q2: Why are case study questions important for understanding class 12 physics chapters?
A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.
Q3: How should students approach answering case study questions for CBSE?
A3: Students should carefully read the case study, identify the key issues or problems presented, analyze the information provided, apply relevant concepts and principles of chemical reactions and equations, and formulate well-supported solutions or responses.
Q4: Are there any resources available online for students to practice case study questions on class 12 physics chapters for CBSE exams?
A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our website to access these questions and enhance your learning experience. If you need more case study questions for your preparation, then you visit Physics Gurukul website.
Q5: How can students effectively prepare for case study questions on “Nuclei” for CBSE exams?
A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.
Q6: How can teachers incorporate case study questions on “Nuclei” class 12 physics into classroom teaching?
A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of “Nuclei”.
Q7: wo nuclei have mass numbers in the ratio 1 : 2. What is the ratio of their nuclear densities?
A7: 1 : 1 as nuclear density does not depend on mass number.
Q8: Define the term mass defect.
A8: The difference between the rest mass of a nucleus and the sum of the rest masses of its constituent nucleon is called its mass defect.
Q9: What are nuclear forces?
A9: Very short range, strong attractive forces, which firmly hold the nucleons together inside a nucleus, are called nuclear forces.
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