CBSE Class 12 Physics Study Materials All Chapters
Class 12 Physics Chapters
- Chapter 1 Electric Charges And Fields
- Chapter 2 Electrostatic Potential And Capacitance
- Chapter 3 Current Electricity
- Chapter 4 Moving Charges And Magnetism
- Chapter 5 Magnetism And Matter
- Chapter 6 Electromagnetic Induction
- Chapter 7 Alternating Current
- Chapter 8 Electromagnetic Waves
- Chapter 9 Ray Optics and Optical Instruments
- Chapter 10 Wave Optics
- Chapter 11 Dual Nature Of Radiation And Matter
- Chapter 12 Atoms
- Chapter 13 Nuclei
- Chapter 14 Semiconductor Electronics Materials Devices And Simple Circuits
- Chapter 15 Communication Systems
CBSE Class 12 Physics Syllabus 2020-21 (Revised):
Check the new CBSE Class 12 Physics syllabus 2020-21. CBSE Syllabus for Class 12 Physics is very important for the preparation of CBSE 12th Physics board exam 2020-21.
CBSE Class 12 Physics Syllabus 2020-21
Time: 3 hrs. Max Marks: 70
|No. of Periods||Marks|
|Chapter–1: Electric Charges and Fields|
|Chapter–2: Electrostatic Potential and|
|Chapter–3: Current Electricity|
|Unit-III||Magnetic Effects of Current and Magnetism||16||17|
|Chapter–4: Moving Charges and Magnetism|
|Chapter–5: Magnetism and Matter|
|Unit-IV||Electromagnetic Induction and Alternating||19|
|Chapter–6: Electromagnetic Induction|
|Chapter–7: Alternating Current|
|Chapter–8: Electromagnetic Waves|
|Chapter–9: Ray Optics and Optical Instruments|
|Chapter–10: Wave Optics|
|Unit–VII||Dual Nature of Radiation and Matter||7||12|
|Chapter–11: Dual Nature of Radiation and Matter|
|Unit–VIII||Atoms and Nuclei||11|
|Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits|
Unit I: Electrostatics (23 Periods)
Chapter–1: Electric Charges and Fields
Electric Charges; Conservation of charge, Coulomb’s law-force between two-point charges, forces between multiple charges; superposition principle and continuous charge distribution. Electric field, electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in uniform electric field.
Electric flux, statement of Gauss’s theorem and its applications to find field due to infinitely long straight wire, uniformly charged infinite plane sheet
Chapter–2: Electrostatic Potential and Capacitance
Electric potential, potential difference, electric potential due to a point charge, a dipole and system of charges; equipotential surfaces, electrical potential energy of a system of two point charges and of electric dipole in an electrostatic field.
Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and electric polarisation, capacitors and capacitance, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor.
Unit II: Current Electricity (15 Periods)
Chapter–3: Current Electricity
Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation with electric current; Ohm’s law, electrical resistance, V-I characteristics (linear and nonlinear), electrical energy and power, electrical resistivity and conductivity; temperature dependence of resistance.
Internal resistance of a cell, potential difference and emf of a cell, combination of cells in series and in parallel, Kirchhoff’s laws and simple applications, Wheatstone bridge, metre bridge(qualitative ideas only)
Potentiometer – principle and its applications to measure potential difference and for comparing EMF of two cells; measurement of internal resistance of a cell(qualitative ideas only)
Unit III: Magnetic Effects of Current and Magnetism (16 Periods)
Chapter–4: Moving Charges and Magnetism
Concept of magnetic field, Oersted’s experiment.
Biot – Savart law and its application to current carrying circular loop.
Ampere’s law and its applications to infinitely long straight wire. Straight and toroidal solenoids (only qualitative treatment), force on a moving charge in uniform magnetic and electric fields
Force on a current-carrying conductor in a uniform magnetic field, force between two parallel current-carrying conductors-definition of ampere, torque experienced by a current loop in uniform magnetic field; moving coil galvanometer-its current sensitivity and conversion to ammeter and voltmeter.
Chapter–5: Magnetism and Matter
Current loop as a magnetic dipole and its magnetic dipole moment, magnetic dipole moment of a revolving electron, bar magnet as an equivalent solenoid, magnetic field lines; earth’s magnetic field and magnetic elements.
Unit IV: Electromagnetic Induction and Alternating Currents (19 Periods)
Chapter–6: Electromagnetic Induction
Electromagnetic induction; Faraday’s laws, induced EMF and current; Lenz’s Law, Eddy currents. Self and mutual induction.
Chapter–7: Alternating Current
Alternating currents, peak and RMS value of alternating current/voltage; reactance and impedance; LC oscillations (qualitative treatment only), LCR series circuit, resonance; power in AC circuits
AC generator and transformer.
Unit V: Electromagnetic waves (2 Periods)
Chapter–8: Electromagnetic Waves
Electromagnetic waves, their characteristics, their Transverse nature (qualitative ideas only).
Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses.
Unit VI: Optics (18 Periods)
Chapter–9: Ray Optics and Optical Instruments
Ray Optics: Refraction of light, total internal reflection and its applications, optical fibres, refraction at spherical surfaces, lenses, thin lens formula, lensmaker’s formula, magnification, power of a lens, combination of thin lenses in contact, refraction of light through a prism.
Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.
Chapter–10: Wave Optics
Wave optics: Wavefront and Huygens principle, reflection and refraction of plane waves at a plane surface using wave fronts. Proof of laws of reflection and refraction using Huygens principle. Interference, Young’s double slit experiment and expression for fringe width, coherent sources and sustained interference of light, diffraction due to a single slit, width of central maximum
Unit VII: Dual Nature of Radiation and Matter (7 Periods)
Chapter–11: Dual Nature of Radiation and Matter
Dual nature of radiation, Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation-particle nature of light.
Experimental study of photoelectric effect
Matter waves-wave nature of particles, de-Broglie relation
Unit VIII: Atoms and Nuclei (11 Periods)
Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum.
Chapter–13: Nuclei Composition and size of nucleus Nuclear force
Mass-energy relation, mass defect, nuclear fission, nuclear fusion.
Unit IX: Electronic Devices (7 Periods)
Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits
Energy bands in conductors, semiconductors and insulators (qualitative ideas only) Semiconductor diode – I-V characteristics in forward and reverse bias, diode as a rectifier; Special purpose p-n junction diodes: LED, photodiode, solar cell.
PRACTICALS [Total Periods: 32]
The record to be submitted by the students at the time of their annual examination has to include:
Record of at least 8 Experiments [with 4 from each section], to be performed by the students.
Record of at least 6 Activities [with 3 each from section A and section B], to be demonstrated by teacher
Time Allowed: Three hours, Max. Marks: 30
1. To determine resistivity of two / three wires by plotting a graph for potential difference versus current.
2. To find resistance of a given wire / standard resistor using a metre bridge.
To verify the laws of combination (series) of resistances using a metre bridge.
To verify the laws of combination (parallel) of resistances using a metre bridge.
3. To compare the EMF of two given primary cells using a potentiometer.
To determine the internal resistance of a given primary cell using a potentiometer.
4. To determine resistance of a galvanometer by half-deflection method and to find its figure of merit.
5. To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same.
To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same.
6. To find the frequency of AC mains with a sonometer.
1. To measure the resistance and impedance of an inductor with or without iron core.
2. To measure resistance, voltage (AC/DC), current (AC) and check continuity of a given circuit using a multimeter.
3. To assemble a household circuit comprising three bulbs, three (on/off) switches, a fuse and a power source.
4. To assemble the components of a given electrical circuit.
5. To study the variation in potential drop with length of a wire for a steady current.
6. To draw the diagram of a given open circuit comprising at least a battery, resistor/rheostat, key, ammeter and voltmeter. Mark the components that are not connected in proper order and correct the circuit and also the circuit diagram.
1. To find the focal length of a convex lens by plotting graphs between u and v or between 1/u and 1/v.
2. To find the focal length of a convex mirror, using a convex lens.
To find the focal length of a concave lens, using a convex lens.
3. To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation.
4. To determine refractive index of a glass slab using a travelling microscope.
5. To find refractive index of a liquid by using convex lens and plane mirror.
6. To draw the I-V characteristic curve for a p-n junction diode in forward bias and reverse bias.
1. To identify a diode, an LED, a resistor and a capacitor from a mixed collection of such items.
2. Use of a multimeter to see the unidirectional flow of current in case of a diode and an LED and check whether a given electronic component (e.g., diode) is in working order.
3. To study the effect of intensity of light (by varying distance of the source) on an LDR.
4. To observe refraction and lateral deviation of a beam of light incident obliquely on a glass slab.
5. To observe polarization of light using two Polaroids.
6. To observe diffraction of light due to a thin slit.
7. To study the nature and size of the image formed by a (i) convex lens, (ii) concave mirror, on a screen by using a candle and a screen (for different distances of the candle from the lens/mirror).
8. To obtain a lens combination with the specified focal length by using two lenses from the given set of lenses.
CBSE Class 12 Books List 2019-20: Check NCERT & Other Recommended Reference Books for Physics
Wondering about the best reference books for CBSE Class 12th Physics subject? Check details of best reference books & also get links to download solutions of NCERT (and NCERT Exemplar).
What are the best reference books for CBSE Class 12th Physics subject? Many students preparing or CBSE Class 12 Physics Board Exam 2019 often asks this question. Here we are providing details of books recommended by many CBSE School teachers and important for the preparation of Class 12 Physics Syllabus and CBSE 12th Physics Board Exam 2020.
Recommended books for CBSE Class 12 Physics:
List of best books or recommended books for CBSE Class 12 Physics is given below
1- NCERT Textbook for Class 12 Physics – Part I & Part II
Books published by NCERT (National Council of Educational Research and Training) are recommended by CBSE (Central Board of Secondary Education). NCERT textbooks (Part 1 and 2) for Class 12 Physics are important for the preparation of Class 12 Physics board exam and competitive exams like NEET, JEE etc. These books are available free of cost on the official website of NCERT. You can also download these books free of cost from the link given below. We have also provided the solutions of the exercises given in Class 12 Physics NCERT Textbooks.
2 – NCERT Exemplar for Class 12 Physics
NCERT Exemplar is basically a question bank and it contains different varieties of questions that you will not find in the NCERT textbook. In NCERT Exemplar for Class 12 Physics, you will find
– Multiple Choice Questions with Single Correct Answer
– Multiple Choice Questions with Multiple Correct Answers
– Very Short Answer Types Questions
– Short Answer Types Questions
– Long Answer Types Questions
The difficulty level of these questions is a bit higher then NCERT textbook. Questions given in NCERT Exemplar are often asked in competitive exams (like NEET, JEE Mains etc), directly or indirectly. NCERT Exemplar for Class 12 Physics is also available for download in PDF format, free of cost. Here, we have also provided links to download solutions of Class 12 Physics NCERT Exemplar.
3 – NCERT Lab Manual for Class 12 Physics
This is another important book for CBSE Class 12 students having Physics as one of their subjects. In Lab manual students will get complete details of the project work and the experiments. The theory and experiments, given in the NCERT Lab Manual are important for both CBSE 12th Physics board exam and various competitive exams (JEE Main & Advanced, NEET). The PDF of this book is also available for free of the cost.
Reference Books for Class 12 Physics:
The book which has easy to understand theory and varieties of questions is considered as the best reference book. Here we have provided details of the reference books recommended by many teachers teaching in various CBSE Schools.
4 – Pradeep’s Fundamental Physics – Class 12: Volume 1 and 2
For Class 12 Physics, we recommend Pradeep’s Fundamental Physics is recommended by many CBSE School teachers. The theory portion given in this book is very easy to understand. This book has a sufficient number of solved and unsolved questions. This book also contains solutions of NCERT and NCERT Exemplar. This book is also helpful for the preparation of various engineering and medical entrance examinations.
5 – Concept of Physics by HC Verma (Part I and Part II)
If you are preparing for competitive exams, then, you must study Concepts of Physics by HC Verma Part I & II. This book even has more varieties of questions which you will not find in NCERT Textbook and NCERT Exemplar.
6 – Nootan Physics – A reference book for Class 12 by Kumar Mittal
This book is another good option and is often recommended by many school teachers. The flow of theory portion given in Pradeep’s Fundamental Physics is similar to the NCERT textbook but this book has its own unique style. Many students love reading from this book and is often recommended by teachers of various coaching institutes.