CBSE Chapterwise Important Questions for Class 12 Physics with Answers PDF - Free Download
Chapterwise Important Questions for CBSE Class 12 Physics
FAQs on CBSE Class 12 Physics Important Questions 2024-25
1. What is the syllabus of CBSE Class 12 Physics?
Altogether there are 14 chapters in Class 12 Physics. Below is the list of chapters:
Unit -1: Electrostatics
Chapter 1: Electric Charges and Field
Chapter 2: Electrostatic Potential and capacitance.
Unit - 2: Current Electricity
Chapter 3: Current Electricity
Unit - 3: Magnetic Effects of Magnetism and Current
Chapter 4: Moving Charges and Magnetism
Chapter 5: Magnetism and Matter
Unit - 4: Electromagnetic Induction and Alternating Currents
Chapter 6: Electromagnetic Induction
Chapter 7: Alternating Current
Unit - 5: Electromagnetic Waves
Chapter 8: Electromagnetic Waves
Unit - 6: Optics
Chapter 9: Ray optics and optical instruments
Chapter 10: Wave optics
Unit - 7: Dual Nature of Matter and Radiation
Chapter 11: Dual nature of radiation and matter
Unit - 8: Atoms and Nuclei
Chapter 12: Atoms
Chapter 13: Nuclei
Unit - 9: Electronic Devices
Chapter 14: Semiconductor of electronics: devices, simple circuits and materials
Chapter 15: Communication system
2. How to attempt a physics paper on the mainboard exam?
Firstly, note down all the formulas and practise them frequently to remember them by heart. Derivations play a major role in Physics. Learning the derivations of the Formulas will help you solve the questions on board with ease. Questions in the exam will be asked in a deviant way. To understand them you need to be very much perfect with the derivations of the formulas.
Always focus mainly on the topics with a high weightage of marks. Your main concentration should be on topics like a Sound wave, Wave Optics, Modern Physics, Alternating current. Thermodynamics is a subject which is common in both the subjects of Physics and Chemistry. This is also one of the most important topics in Physics. Thorough practice with all the concepts is a must.
3. What is the potential energy and conservation of energy?
Potential Energy and Conservation of Energy is one of the most essential topics of the CBSE and NCERT books, from which you will gain knowledge of work and potential energy, conservative and non-conservative forces, path independence of conservative forces, determining potential energy values, gravitational potential energy, elastic potential energy, conservation of mechanical energy, reading a potential energy curve, turning point, equilibrium point.
The topic also discusses the work done on a system by an external force, conservation of energy, isolated system and external force and internal force transfer. Further, you will also learn about the gravitational potential, the relationship between the gravitational field and potential, gravitational potential energy, binding energy, circular motion principles for satellites and Kepler’s law. Here, Kepler’s law explains to you about the centripetal and centrifugal force and you will also be taught how to calculate the centripetal force.
4. What do we learn in the chapters electricity and magnetism?
Electricity and Magnetism of CBSE and NCERT books explain to you of electromotive force (EMF) and voltage, resistance and resistivity, the origin of resistivity, the temperature dependence of resistivity, electrical current, resistance and Ohm’s law, the temperature dependence of resistivity and resistance, the battery and the electromotive force, heating effect of currents, the grouping of cells, electrical measuring instruments, chemical effect of current, thermoelectricity, confines of Ohm’s law, superconductivity, resistors in series and in parallel and electric circuits and Kirchoff’s law.
The chapter mainly focuses on electric charges, conductors and insulators, charging of a body, Coulomb’s Law, Electric field, Electric potential energy, electric potential, the relationship between electric field and potential, equipotential surface, electric dipole, Gauss’s law, properties of a conductor, the attraction of paper to a charged scale, the apparently spontaneous explosion of grain silos, the damage of electronic components during manufacturing, Photocopier & laser printer operation, electric field and potential due to charged spherical shell or solid conducting sphere and electric field and potential due to a solid sphere of charge.
5. What is the unit 'Optics' of Class 12 Physics all about?
Optics in Class 12 is a very crucial unit. This unit consists of two chapters that are:
Ray Optics and Optical Instruments
Wave Optics
Optics is a branch of Science that deals with light and its various phenomena. Ray Optics includes concepts of reflection, refraction, dispersion etc. Wave Optics deals with the topics such as interference, diffraction, young’s double-slit experiment, etc. This unit holds a huge place in Class 12 boards and so, students can brush up their concepts of Optics with the help of study material available on Vedantu website and app.
6. What are the important topics in the unit ‘Electrostatics’ of Class 12 Physics?
The unit ‘Electrostatics’ comprises two chapters namely, electric charges and fields and electrostatic potential and capacitance. Following are listed important topics according to each chapter:
Electric Charges and Fields
Electric charge
Coulomb's law and electric force
Electric field & field lines
Electric dipoles.
Torque Continuous charge distribution.
Electric Flux
Gauss’ Law
Electrostatic Potential and Capacitance
Electrostatic Potential, Potential Energy and Work done
Potential due to i) electric dipole ii) point charge
Equipotential surfaces
Capacitance
Combination of capacitors
Energy stored in capacitors
7. Which chapter is most important in Class 12 Physics?
According to the blueprint or the marking scheme provided by the CBSE, the chapters that hold the highest marks weightage are considered to be the most important chapters. Although every chapter prescribed in the syllabus of the Class 12 NCERT book is crucial for further studies, if we talk about 12 boards then: Electrostatics and Current Electricity with 16 marks, Magnetic Effects and Electromagnetic Induction with 17 marks and Optics and Dual Nature of Radiation and Light with 18 marks are the chapters which need more concentration.
8. How can I score 90 marks in Class 12 Physics?
Remember the following points to ensure 90 marks in Class 12 Physics-
Cover the entire syllabus and don’t skip a single chapter.
Scan the blueprint in your mind and study accordingly.
Practice sample papers and previous years’ papers regularly and thoroughly.
Make your answers precise and to the point while adhering to the word limit.
Add graphical representation or diagrams to enhance your answers.
Do not hurry and solve the numerical with utter care.
Give fifteen minutes to review the entire answer sheet.
9. Why should I choose Vedantu for Important Questions of Class 12 Physics?
Through an easy-to-use and free tool, Vedantu is revolutionizing the way students prepare for exams. Important questions for Class 12 Physics chapter-wise PDF is available at Vedantu website and app for free download to enhance the learning of the students. Expert tutors at Vedantu craft the questions after careful consideration and deliberation. It is certain that students will gain a lot from this free service. Students will have a new way to increase their chances of achieving higher grades with the help of these important questions.