How to prepare Physics for Class 12th Board Exam

PCM are the main subjects for science students. In Physics you have 70 marks for the written exam and 30 marks are for the practical. Class 12th Physics has a total of 10 units. The syllabus is not easy so here are some important topics of all chapters based on the previous year papers of CBSE board. Although every single topic is important but still while reviewing the previous year papers, we collect some extremely important topics for your upcoming board exam.

A good strategy will be very helpful for getting better marks in Physics. The syllabus is very lengthy and you have 10 units. These units are further divided into 15 chapters. So, you should know in advance that where to start with and what to do with more focus. Read this whole article and you will get to know how to prepare for Class 12th Physics to score high marks and even you can score 90+ marks.

Read the Whole Article and you will get all the information & ideas that you need to prepare best for physics Class 12TH and all your doubts will get cleared.

To Score 90+ marks in Physics students should practice from previous year. By practicing from previous year papers they will get know how to prepare as they will get the idea of important units and topics. follow this link CBSE 12th Physics Previous Year Solved Papers (All India & Delhi Board).

Preparation for Class 12th Physics: Chapter & Important topics wise

In a simple way the answer of this question: “how to prepare for physics for class 12th” is by organizing the syllabus and distribute the units and chapter in the different category.

To prepare for any subject first we need to organize the syllabus of that subject and the categorize it. You can categorize yourself according to your ideas and logical concept. Once the syllabus is organized with respect to units, chapter and topics then you can make strategy for your preparation.

In Physics we have concepts, derivations, & numerical and we can categories the syllabus according to the difficulty of the units.
The syllabus can be divided into four categories:

  • Most Important
  • Scoring
  • Related Units
  • Tricky Ones

Here is a list of important topics from each chapter with assigned marks. You can start preparing from any of the above four categories.

Syllabus Analysis: UNIT, CHAPTER & TOPICS

Class 12th Physics units marks classification

Most Important: The most important unit is OPTICS, it carries 14 marks. It is a very lengthy unit but an easy one to crack.

UNIT 6 (14 Marks) Very Lengthy UNIT BUT EASY.
Chapter 9: Ray Optics and Optical Instruments

  1. Image formation by spherical mirrors
  2. TIR (Total internal reflection)
  3. Power and combination of lenses
  4. Refraction
  5. Eye
  6. Telescope
  7. Microscope

Chapter 10: Wave Optics

  1. Reflection and refraction of plane waves using Huygen principle
  2. Incoherent and coherent waves addition
  3. Interference and Young’s double slit experiment
  4. Diffraction of light
  5. Polarisation by scattering

Scoring Units: The Scoring units are UNIT 5, 7, 8, 9 and 10. These units are very easy to score well in examination. Do all the important topics very carefully.

UNIT 5 (3 Marks)
Chapter 8: Electromagnetic Waves

  1. Nature of EM waves

UNIT 7 (4 Marks)
Chapter 11: Dual Nature of Radiation and Matter

  1. Photoelectric effect
  2. de Broglie hypothesis

UNIT 8 (6 Marks): MODERN PHYSICS
Chapter 12: Atoms

  1. Atomic structure
  2. Atomic spectra
  3. Bohr Model of Hydrogen atom and de Broglie postulate
  4. Line spectra of Hydrogen atom

Chapter 13 – Nuclei

  1. Radioactivity

UNIT 9 ( 7 Marks)
Chapter 14 – Semiconductor Electronics: Materials, Devices
and Simple Circuits

  1. p-n Junction in forward bias and reverse bias
  2. pnp and npn transistors
  3. Zener diode as a voltage regulator
  4. Logic gates (VERY EASY TOPIC -3 Marks)

UNIT 10 (5 Marks)
Chapter 15: Communication Systems

  1. Basic elements and terminology of communication system
  2. Amplitude modulation
    Related Units: If you have mastered the first Unit then Unit 3 as simple as that for you.

UNIT1 (8 Marks)
Chapter 1: Electronic Charges and Field

  1. Coulomb’s Law in Vector form
  2. Forces between multiple charges electric field due to system of charges
  3. Electric dipole’s electric field on axial and equatorial point
  4. Electric dipole in external electric field
  5. Gauss’s law applications
  6. Torque -Derivation

Chapter 2: Electrostatic Potential and Capacitance

  1. Potential due to electric dipole and system of charges
  2. Electric potential energy due to electric dipole and system of charges
  3. Equipotential surfaces
  4. Effect of dielectric on capacitors
  5. Combinations of capacitors
  6. Energy stored in capacitors

UNIT 3 (8 Marks)
Chapter 4 : Moving Charges and Magnetism

  1. Magnetic force on a current carrying wire
  2. Velocity selector
  3. Cyclotron
  4. Magnetic field on axis of circular current carrying loop
  5. Ampere’s circuital law
  6. Torque on a current carrying loop in magnetic field- Derivation
  7. Moving coil galvanometer
  8. Solenoid

Chapter 5: Magnetism and Matter

  1. Axial magnetic field of bar magnet as solenoid
  2. Electric dipole in uniform magnetic field
  3. Hysteresis Loop

Tough Units: Unit 4 and Unit 2 are tough for most of the students. So you should better prepare hard for all the derivations and numerical of these two units.

UNIT 4 (8 Marks)
Chapter 6: Electromagnetic Induction

  1. Faraday’s law of induction
  2. Lens law
  3. Motional EMF
  4. Self inductance and mutual inductance

Chapter 7: Alternating Current

  1. RC, LC, LR and LCR Circuits
  2. Power factor
  3. Resonance and Sharpness
  4. Transformers

UNIT 2 (7 Marks)
Chapter 3: Current Electricity

  1. Kirchhoff’s law: NUMERICAL
  2. Limitations of ohm’s law
  3. Resistivity of different materials
  4. Combination of resistors
  5. Combination of cells
  6. Potentiometer

Important Topics discussion

  • You must have command on the following derivations: Current, Magnetism, AC, Electrostatic
  • You should prepare your best for the questions based on devices: Transformers, Generators, solenoid and Cyclotron
  • Numericals should be practiced well. Topics including Electrostatic, AC, Magnetic field,
    Current Electricity, semiconductor, EMI, Young double slit experiment
  • Here is the research of Important questions on the bassis of previous board examm: CBSE 12th Physics Very Important Questions Chapter Wise

Don’t miss the proof of laws of reflection, refraction, and derivations of laws such as Ohm’s Law and Lenz Law. The working principle of devices is also very important. Current Electricity and magnetism are the most important topics for numerical. Young Double slit experiment is very important. 1 question can be asked from this.

You must prepare for every topic to get good marks. But in this review, we have noted down some important topics and chapters based on the previous year CBSE exam patterns.

Coulomb Law: You may get either 1 marks question or you may ask to plot a graph based on the law. Electric Lines of Force- this is another important topic but a theoretical one. You must go through all the concepts related to electric lines. Gauss’s Law numerical and derivation both are important. You can do practice from chapter-wise CBSE solved papers. You must learn all the formulas. Revision is very important in physics.

You can start preparing with the unit 6 Optics. After that, you can jump to the scoring part of the syllabus. The most difficult part should be done at last.

If you just want to pass physics paper at the last hour, you should cram the following topics:
EM Waves, Wave Optics (Huygen’s Principle), Atom and nuclei, PNP and NPN junctions, and logic gates.

Also, Read this article related to Class 12TH Physics Previous 5 To 10 Years Solved Question Papers. Here are some tips and ideas which will help you to prepare for board exam & class 12th physics.

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