The CBSE Class 12 Practical and Project Work examinations are underway, and students often find themselves questioning how to effectively prepare for their Physics viva. Understanding the types of questions that may be posed by external examiners can give students a significant advantage. Here, we outline expert-recommended tips for preparing for the Physics viva, enabling students to secure higher scores and excel in their examinations.
Understanding the Physics Viva Structure
According to Sandipa N., a Physics teacher at Kendriya Vidyalaya Domnimlai in Karnataka, there are two critical focus areas for students preparing for their Physics viva:
- Insights related to the project prepared by the student.
- Understanding of the experiments conducted during the practical exam.
Key Tips for Project Preparation
To provide well-informed answers during the viva, it is essential for students to have a thorough understanding of their project. Here are important aspects to keep in mind:
| Aspect | Description |
|---|---|
| Project Title | Remember the exact title of your project. |
| Basic Principles | Familiarize yourself with the fundamental principles and terminologies used in your project, as they may form the basis of questions asked by the examiner. |
Preparing for Experiment-Based Questions
Prioritizing preparation for likely questions related to the experiments conducted is crucial, particularly in the following three areas that are commonly covered in Class 12 practicals:
- Current Electricity
- Galvanometer and other Electrical Devices
- Ray Optics
It is advisable for students to grasp the basic concepts and formulas related to these topics. For instance, if a student is tasked with finding the resistivity of a given wire using Ohm’s Law, the examiner may ask pertinent questions such as:
- Define Ohm’s Law and specify the conditions under which it is valid.
- Describe the properties of the wire used in the experiment, particularly if it is an unknown material.
- Explain how to connect an ammeter and voltmeter in a circuit.
- Differentiate between resistance and resistivity, ensuring you understand both definitions clearly.
- Identify factors that affect resistance, with potential for providing examples related to varying lengths of wires.
Broader Experiment Preparation
Students should similarly prepare for all other experiments they have conducted. It’s important to focus on the fundamentals and ensure that the experiments are well understood. By following these tips, Class 12 students can enhance their preparation and perform better in their Science viva exams, ultimately helping them achieve their desired scores.