Greetings Readers
First of all a very Happy New Year to all the readers, wish you are doing good and your efforts give you the result you had been aiming in the past few years of preparation.
2016 is over now and you all must be busy finishing your course and revising what you have done throughout the year. Those who are in Class 12 have the additional load of Board exams, with their school pre-board exams having been started too.
2016 is over now and you all must be busy finishing your course and revising what you have done throughout the year. Those who are in Class 12 have the additional load of Board exams, with their school pre-board exams having been started too.
Continuing in the series of posts on Revision Strategy, today we would be discussing about the class 12 part of Physics.
Having already described to you the way you need to see and study Physics as a subject in the previous post Revision Strategy : Class 11 Physics This time I would be writing directly about individual topics.
First topic that most of us study is Electrostatics. Electrostatics, initially seeming easy, works it's way to toughness and complexity as the chapter continues. Electric field, forces involved, combined electric field and force due to several components, Electric Potential, Electric Potential Energy, the infamous Gauss Law, Electric Dipole,Equipotential Surfaces and many more.
The first thing to do is get your basics right. Have very clear idea about which term means what and get the formulas and their applications very right. Next do a variety of questions, to see and learn where which formulas is needed and if there is an easier way of doing a question. This will help you get the right approach 'click' in your mind as soon as you see the question. Get some special concepts like concept of flux and change of potential along electric field cleared out which would help in some tricky questions. Apply law of conservation of energy in some questions of potential energy and velocity to simplify the solution.
Also, Gravitation has a lot things analogous to Electrostatics, and many institutes teach them together, so you should also try to learn them together, so as to reduce efforts and save times
Next comes Current Electricity. We learn first about current and voltage and their dependence on various factors like drift speed and consequent formulas. Get them clear as some tricky questions can be framed. Also, you have to learn to calculate resistance of any arrangement of resistors, so get the formulas and tricks clear in your understanding to avoid silly mistakes. Be vary careful with Kirchoff's Law, as one mistake and the whole effort goes in vain. Although lengthy questions of Kirchoff's Law don't come, but the concept of Kirchoff's Law helps a lot in questions of Capacitance and Inductance. The different devices like Voltmeter, Ammeter, Galvanometer and their conversions are quite important too. Meter Bridge and other concepts involved along with it can get some good questions too.
Capacitance, a topic included with Electric Potential is quite analogous to current electricity, only that the equation of charging and discharging are different. Questions on charging/discharging ,combination of capacitors and change of medium are quite important and probable to come, so get them right.
Capacitance, a topic included with Electric Potential is quite analogous to current electricity, only that the equation of charging and discharging are different. Questions on charging/discharging ,combination of capacitors and change of medium are quite important and probable to come, so get them right.
Another important topic is Magnetism and Magnetic Effects of Current. Magnetism itself is easy, just get the terminologies like Intensity,Field, Dipole clear in your mind to have a clear understanding of the topic. Some tricky questions of SHM, especially of Time Period can be framed too, so try to relate the concepts correctly. Formulas of Magnetic Field in various conditions are to learnt( do see the derivations to have a clearer understanding too), with the concept of direction and positive/negative being and area of silly mistakes so be very particular about it too. Concept of Magnetic Dipole and Ampere's Law can make good questions too, so do focus on them. Force due to Magnetic Field has a large amount of questions that can be framed, which test your concept of NLM and SHM at the same time too, so be aware of them. Magnetic materials and properties of magnetic materials too have some classic questions that can't be missed so do complete them too.
Electromagnetic induction is a chapter based on concepts from Magnetism, although once you get the idea of induction and inductors right, you can ace the chapter by simple formulas, a good understanding and ample of questions practice.
The next big topic is Optics which includes Ray Optics and Wave Optics.
For Ray Optics, I can say it's a lengthy chapter involving a lot of concepts and formulas. This chapter can be aced only by practicing a lot of questions on various concepts and continuous revision. You need to get the concepts of Mirrors, Lens, Refraction, Prism, Slab set in your mind very clearly, so that you easily know that to do in a particular type of question.
Wave Optics is a bit different and related to Waves, a concept of Class 11. You just need to understand Young's Double Slit Experiment and Diffraction and do all the questions related to them, nothing more is required for NEET. Although for AIIMS A&R questions, you need to clear theoretical concepts,although that can be done after NEET too, if time is short currently.
Modern Physics is quite related to Atomic Structure of Chemistry, although X- Rays and Nuclear Physics are new. Get the concept of X-Rays and Photoelectric effect clear and just do the past year questions available as there isn't much scope to make very conceptually tough questions here, only that the calculations may get lengthier.
Semiconductors is also something that gets easy when you understand it, although it takes more time and attempts to do so. 3-4 very easy questions can be asked, so this the topic that you can't afford to ignore. The main concepts from which questions can be framed are the relation number of holes and electrons of an impure conductor, concept of transistor and its working and the logic gates. Theoretical part isn't that important for NEET but may come in A&R questions of AIIMS.
Communication Systems is a topic that comes only in Boards and AIIMS exam (NEET doesn't include it and I don't know about JIPMER). Its actually very small and more of theoretical, with the various modes of communication, their limitations etc. AIIMS can ask some conceptual questions although this can be covered by DC Pandey (JEE edition) which has given all the relevant things you need to study.
Till next time
Bye!
Electromagnetic induction is a chapter based on concepts from Magnetism, although once you get the idea of induction and inductors right, you can ace the chapter by simple formulas, a good understanding and ample of questions practice.
The next big topic is Optics which includes Ray Optics and Wave Optics.
For Ray Optics, I can say it's a lengthy chapter involving a lot of concepts and formulas. This chapter can be aced only by practicing a lot of questions on various concepts and continuous revision. You need to get the concepts of Mirrors, Lens, Refraction, Prism, Slab set in your mind very clearly, so that you easily know that to do in a particular type of question.
Wave Optics is a bit different and related to Waves, a concept of Class 11. You just need to understand Young's Double Slit Experiment and Diffraction and do all the questions related to them, nothing more is required for NEET. Although for AIIMS A&R questions, you need to clear theoretical concepts,although that can be done after NEET too, if time is short currently.
Modern Physics is quite related to Atomic Structure of Chemistry, although X- Rays and Nuclear Physics are new. Get the concept of X-Rays and Photoelectric effect clear and just do the past year questions available as there isn't much scope to make very conceptually tough questions here, only that the calculations may get lengthier.
Semiconductors is also something that gets easy when you understand it, although it takes more time and attempts to do so. 3-4 very easy questions can be asked, so this the topic that you can't afford to ignore. The main concepts from which questions can be framed are the relation number of holes and electrons of an impure conductor, concept of transistor and its working and the logic gates. Theoretical part isn't that important for NEET but may come in A&R questions of AIIMS.
Communication Systems is a topic that comes only in Boards and AIIMS exam (NEET doesn't include it and I don't know about JIPMER). Its actually very small and more of theoretical, with the various modes of communication, their limitations etc. AIIMS can ask some conceptual questions although this can be covered by DC Pandey (JEE edition) which has given all the relevant things you need to study.
Till next time
Bye!
No comments:
Post a Comment