Solved NCERT Questions For Class 12 Physics Chapter 13 In Hindi - Free PDF
FAQs on NCERT Solutions For Class 12 Physics Chapter 13 Nuclei in Hindi - 2025-26
1. What are NCERT Solutions for Class 12 Physics Chapter 13 Nuclei and how do they help students as per CBSE 2025–26 guidelines?
NCERT Solutions for Class 12 Physics Chapter 13 Nuclei provide step-by-step answers to all exercise questions in the chapter. These solutions follow the CBSE 2025–26 syllabus, ensuring clarity in concept explanation, correct methodologies, and detailed reasoning to help students master topics like nuclear structure, radioactivity and nuclear reactions for exams.
2. How should students approach solving numerical problems in Chapter 13 Nuclei using the NCERT Solutions?
To solve numerical problems in Nuclei, students should:
- Carefully read the question to identify given data and required quantity
- Write down relevant formulas from the NCERT textbook
- Substitute values with correct units
- Show all calculation steps, as displayed in NCERT Solutions
- Conclude with a clear, boxed answer
3. What are common mistakes students make while writing answers for Nuclei in the NCERT exam format, and how can solutions help avoid them?
Common mistakes include missing units, incomplete explanation of nuclear reactions, and skipping stepwise calculations. NCERT Solutions guide students in presenting answers in a logical sequence with proper units, thorough explanation, and stepwise working to match the CBSE marking scheme.
4. Can NCERT Solutions for Chapter 13 Nuclei help with long answer and short answer questions for board exams?
Yes, the solutions offer detailed methods for both long answer and short answer questions. For long answers, step-by-step explanations and relevant diagrams are provided, while short answer solutions highlight key points and concise calculations—ensuring students address all parts required by the board exam format.
5. Why is stepwise problem solving emphasized in CBSE Physics NCERT Solutions?
CBSE evaluates answer scripts for both concept clarity and the method used. Using stepwise solutions as shown in NCERT ensures each logical step gets marks, even if the final answer is incorrect. This approach improves student confidence and leads to partial marks for correct methods.
6. How do NCERT Solutions aid in understanding the concept of binding energy per nucleon and its significance?
The solutions explain binding energy per nucleon with examples and calculations, illustrating why it is a crucial concept to compare nuclear stability among isotopes. Stepwise solved examples help visualise trends in nuclear stability, supporting clear understanding for board questions.
7. In the context of the NCERT Solutions for Nuclei, how are nuclear reactions such as fission and fusion addressed for board exam preparation?
NCERT Solutions clarify both nuclear fission and fusion by explaining theory, mechanisms, and balancing reaction equations. The stepwise answers provide schematic diagrams and mark official keywords that are important for scoring in CBSE board exams.
8. What is the best method to review and revise Chapter 13 Nuclei using NCERT Solutions?
First, read through solved examples to understand typical question patterns. Next, practice exercise questions using the stepwise solutions provided. Summarise key formulas, concepts, and diagrams regularly to consolidate memory before exams, as suggested by NCERT’s structured approach.
9. How do NCERT Solutions ensure answers are aligned with the CBSE Class 12 Physics marking scheme for Nuclei?
Solutions are structured according to the official CBSE marking scheme: including all demanded parts, giving correct units, and providing clear, logical sequence. Sample answers adhere to CBSE language and present the content in a way that examiners expect, improving scoring chances.
10. What strategy should students follow if they make conceptual errors in their initial attempt, and how can NCERT Solutions help correct them?
If conceptual errors occur, students should compare their approach with the NCERT Solutions to pinpoint mistakes. Identify the concept gap, review the textbook explanation, and attempt the problem again using the correct stepwise methodology to solidify learning and prevent recurrence.
