Physics Mock Paper-1 for CBSE Class 12 Board Exams
FAQs on CBSE Sample Paper Class 12 Physics 2017-18 | Free PDF Download
1. What are the topics taught under Chapter 3 of Class 12 Physics?
The important topics that the 3rd chapter of Class 12 Physics deals with are;
Electric Currents
Electric Currents in Conductors
Ohm’s Law
Limitations of Ohm’s Law
Drift Of Electrons and the Origin of Resistivity
Resistivity of Various Materials
Temperature Dependence of Resistivity
Electrical Energy, Power
Combination Of Resistors-Series and Parallel
Cells in Series and Parallel
Kirchoff’s Rule
Wheatstone Bridge
Meter Bridge
Potentiometer
All these topics are very important for the Class 12 Physics board examination. To help the students score well, the website of Vedantu provides the candidates with numerous study materials, the study and practice of which will help the student attain mastery over the topic, and thus score desirable marks in the examination.
2. Where to download sample questions for Class 12 Physics?
The sample questions for the Class 12 Physics can be easily downloaded from Vedantu's website or mobile app. These can be downloaded in PDF format for free and can be saved for future references as well. The website makes sure that all the materials are updated regularly so that the students don't miss out on anything. The practice of these questions will prove extremely helpful to the students in numerous ways. Firstly, they will realize the pattern in which the questions are set. The students will also come across areas that require more attention and thus prepare accordingly for the exam. It will also help the students work upon their time management skills so that they can finish the exam well within the given time limit.
3. What are conductors and insulators?
The substances through which the passage of electricity is easy are called conductors. Examples of these are metals and the earth. On the other hand, the substances that offer resistance to passing electricity are called insulators. The examples for these are plastic rods and nylon.
For more insight into the chapter, the students are advised to refer to the website of Vedantu. This website provides all the relevant materials and notes that are required by the students for the preparation of the exam.
4. Define Huygens principle.
Huygens’ principle is essentially a geometrical construction. This construction presents the shape of the wavefront at any given time and allows to determine the shape of the wavefront at a later time. Based on the Huygens principle, the following is to be noted;
Every point on the given wavefront acts as a light source. It emits secondary wavelets.
These secondary wavelets spread in every direction in space in consideration of the velocity of light
After a given time, the envelope of the wavefront of the secondary wavelets gives rise to the new position of the wavefront.
5. Is Class 12 Physics hard?
No, Class 12 Physics is not hard if the student is well prepared with all the concepts. To score good grades in the board examinations, the student needs to be well versed with all the important topics that the Physics syllabus incorporates. Reading all the chapters is the first step towards achieving this. Making notes and marking all the important areas are also very helpful in retaining all the important concepts. The students can also refer to the study materials and guide books designed by the NCERT. For more practice, the students can download the Sample Papers and Previous Years’ Question Papers from the website of Vedantu.