Whether you need to study Science or Engineering in the future, your class 12 score plays a crucial role in your future. Everyone would want to score well in their 12th grade. But for you to score well, you need to know what chapters you should pay more attention to and the chapters that have a high weightage. Similarly, for CBSE class 12 physics, there are some chapters that you need to pay close attention to, that can help you increase your final score. Class 12 physics is one of the most important subjects for all science students. To score well in your final board exams, you must have a good understanding of each chapter of the subject.
Here are some of the scoring topics in CBSE class 12 Physics:
- Chapter 9 – Optics
Class 12, Chapter 9 of physics consists of the topic Optics and Optical Instruments. This is an important chapter that will help you score good marks in your final exam. The total weight age of this chapter is around 14 marks. However, you should know that this can vary from time to time. You should be able to solve all the important questions, worksheets, and exercises available in this chapter to help you have a thorough understanding of the topic.
Some of the important topics in this chapter include reflection, a reflection of light, laws of reflection, reflection surface, sign convention, mirror formula, magnification and related topics, laws of refraction, all the formulas, principle of reversibility, and lenses.
- Chapter 2 – Electrostatic Potential and Capacitance
Chapter 2 of class 12 Physics talks about Electrostatic potential and Capacitance. From the view of the final examination, this chapter is one of the most important topics to study from. It has a weightage of around 8 marks, which can vary every year.
Some of the concepts and topics of this chapter that you can prepare for are Charge, Quantization of Charge, Conservation of Charge, Coulomb’s Law of Electrostatics, Coulomb’s law in vector form, electric field, electric field lines, electric field intensity, electric potential, potential gradient, equipotential surface, electric lines of force, electric flux, gauss’s theorem, electric dipole, electric field intensity and potential due to an electric dipole, torque, potential energy, Lighting conductor, Van De Graaff Generator, Redistribution of Charge, and many more.
For you to score well in this chapter, you must be able to solve all the questions and answers, activities, and other important questions available to you. As you know, practice makes perfect and you need to keep practicing for you to score well in your final exam.
- Chapter 4 – Magnetic Effect of Current and Magnetism
Chapter 4 of class 12 CBSE Physics, talks about Magnetic Effects of Current and Magnetism. This is an important chapter from the examination point of view. This chapter has the same weightage as chapter 2 which is around 8 marks. This weightage can also vary every year.
Some of the topics and concepts that you can learn in this chapter are very important. These concepts include Oersted’s Experiment, Maxwell’s Cork Screw Rule, Ampere’s Swimming Rule, Magnetic Field, Biot Savart’s Law, Magnetic Field Due to a Straight Current-Carrying Conductor, Magnetic Field Lines, Right Hand Thumb Rule, Magnetic Field on the Axis of a Current Carry Circular Coil, Magnetic Dipole, Ampere’s Circuital Law, Solenoid, Toroid, Magnetic Field Due to a Current-Carrying Long Circular Cylinder, Fleming’s left hand rule, Lorentz Force, Motion of a Charged Particle in a Uniform Magnetic Field, Cyclotron, Principle of Cyclotron, and many others.
One important tip to score well in this chapter would be to understand all the laws, advantages, disadvantages, limitations, and formulas of all the sub-topics available in the chapter.
- Chapter 6 – Electromagnetic Induction and Alternating Currents
CBSE class 12 physics chapter 6 talks about electromagnetic induction and alternating currents. The weightage of this chapter is around 8 marks in the class 12 CBSE board exams. Apart from having a weightage in your board exam, this unit also has an 8% weightage in competitive exams such as NEET. Apart from this, one question which has a weightage of 4 marks is expected to come for the JEE main exam. If you want to score well in your class 12 physics, you should pay attention to this chapter.
Some of the important topics of this chapter include electromagnetic induction, Faraday’s law, Lenz’s Law, Eddy Currents, Induced EMF and Current, and finally self & mutual inductance.
To score well you need to make sure that you make notes for all the topics in the chapter. This will help you revise everything that you learned. You should learn and understand all the definitions, laws, and formulas that are involved in this chapter. This will ensure that you score well in this chapter and you might even be able to get full marks in this chapter.
- Chapter 14 – Semiconductor: Material, Devices, and Simple Circuits
CBSE class 12 physics chapter 14 talks about Semiconductor: Material, Devices, and Simple Circuits. It is an important chapter for you to study from the final examination point of view. This chapter in class 12 physics has a weightage of around 7 marks. You can easily score full marks in this chapter if you study it thoroughly.
Some of the important concepts of this chapter include Intrinsic Semiconductors, Extrinsic Semiconductors, Types of Extrinsic Semiconductors, Holes, Electrical Conductivity of a Semiconductor, Transistors and related topics, all the formulas, and diagrams.
These are just a few of the important topics that you can study to ensure that you score well in CBSE class 12 physics. Other chapters that you can study include current electricity, atoms & nuclei, communications system, dual nature of matter, and electromagnetic waves. All you need to do to score well is to make notes, revise and solve as many question papers as you can. You need to practice your answers and the best way to do it is to solve previous years’ question papers. It is very easy for you to score full marks in this subject. You just need to trust your study process and give the best that you have.