 # CBSE Class 12 Physics Syllabus: 2019 - 2020

Check latest CBSE Class 12 Physics Syllabus 2019-20. With this article, you can also download the PDF of CBSE 12th Physics Syllabus.

May 18, 2019 17:42 IST CBSE Class 12 Physics Syllabus: 2019 - 2020

CBSE Class 12 Physics Syllabus 2019-20 is available for download in PDF format. Link to download NCERT based CBSE Syllabus for Class 12 Physics is given at the end of this article. The syllabus contains complete details about course structure or syllabus, exam pattern, practicals, investigatory projects & other important details. The important portion of CBSE Class 12 Physics Syllabus 2019 – 20 is given below:

 No. of Periods Marks Unit–I Electrostatics 22 16 Chapter–1: Electric Charges and  Fields Chapter–2: Electrostatic Potential and Capacitance Unit-II Current Electricity 20 Chapter–3: Current  Electricity Unit-III Magnetic Effects of Current and Magnetism 22 17 Chapter–4: Moving Charges and  Magnetism Chapter–5: Magnetism and Matter Unit-IV Electromagnetic Induction and Alternating Currents 20 Chapter–6: Electromagnetic Induction Chapter–7: Alternating Current Unit–V Electromagnetic Waves 04 18 Chapter–8: Electromagnetic Waves Unit–VI Optics 27 Chapter–9: Ray Optics and Optical Instruments Chapter–10: Wave Optics Unit–VII Dual Nature of Radiation and Matter 08 12 Chapter–11: Dual Nature  of Radiation and Matter Unit–VIII Atoms and Nuclei 15 Chapter–12: Atoms Chapter–13: Nuclei Unit–IX Electronic Devices 12 7 Chapter–14: Semiconductor         Electronics: Materials, Devices and Simple Circuits Total 150 70

Unit I: Electrostatics (22 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 fleld.

Electric flux, statement of Gauss's theorem and  its  applications  to find  field due  to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell (field inside and outside).

 List of Books Recommended for CBSE Class 12 Physics • NCERT for Class 12 Physics: All Chapters (With Solutions) • NCERT Exemplar for Class 12 Physics: All Chapters (With Solution) • Pardeep's Fundamental Physics for Class 12 [Offers Available] • Concept of Physics by H.C Verma (Part-2)

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.

NCERT Exemplar Solutions for CBSE Class 12 Physics

Unit II: Current Electricity (20 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  non-linear), electrical energy and power,  electrical resistivity and  conductivity, Carbon resistors, colour code  for carbon resistors; series and  parallel combinations of resistors; temperature dependence of resistance

The 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.

Potentiometer - principle and its applications to measure potential difference and for comparing EMF of two cells; measurement of internal resistance of a cell.

NCERT Solutions for CBSE Class 12 Physics

Unit III: Magnetic Effects of Current and Magnetism (22 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, Cyclotron.

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,  magnetic  field  intensity  due   to  a magnetic dipole  (bar  magnet) along  its  axis and  perpendicular  to  its  axis, torque  on  a  magnetic dipole (bar  magnet) in a  uniform magnetic field; bar magnet as an equivalent solenoid, magnetic field lines; earth's magnetic field and magnetic elements.

Para-, dia- and ferro - magnetic substances, with examples. Electromagnets and factors affecting their strengths, permanent magnets.

Unit IV: Electromagnetic Induction and Alternating Currents (20 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, power factor, wattless current. AC generator and transformer.

Unit V: Electromagnetic waves (04 Periods)

Chapter–8: Electromagnetic Waves

Basic idea of displacement current, 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 (27 Periods)

Chapter–9: Ray Optics and Optical Instruments

Ray  Optics: Reflection of light, spherical mirrors, mirror formula, refraction of light, total internal reflection and  its applications, optical fibers, 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. Scattering of light - blue colour of sky and  reddish appearance of the sun at sunrise and  sunset.

Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.

Chapter–10: Wave Optics

Wave  optics: Wave  front and  Huygen's principle, reflection and  refraction of plane  wave  at a plane surface  using  wave  fronts.  Proof  of laws of reflection and refraction using Huygen's 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, resolving  power   of  microscope  and   astronomical  telescope,  polarisation, plane  polarised  light,  Brewster's  law,  uses  of  plane  polarised  light  and Polaroids.

Unit VII:   Dual Nature of Radiation and Matter (08 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.

Matter  waves-wave nature of particles, de-Broglie relation, Davisson-Germer experiment (experimental details should be omitted; only conclusion should be explained).

Unit VIII: Atoms and Nuclei (15 Periods)

Chapter–12: Atoms

Alpha-particle scattering experiment; Rutherford's model of atom;  Bohr model, energy levels, hydrogen spectrum.

Chapter–13: Nuclei

Composition   and   size   of  nucleus,   Radioactivity,   alpha,   beta   and   gamma particles/rays and their properties; radioactive decay law. Mass-energy  relation,   mass  defect;   binding   energy  per   nucleon   and   its variation with mass number; nuclear fission, nuclear fusion.

Unit IX: Electronic Devices (12 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  and  Zener diode and  their characteristics, zener diode as a voltage regulator.

CBSE Class 12 Physics Practicals Exam Syllabus 2019-20 (Total Periods 60):

The record to be submitted by the students at the time of their annual examination has to include:

• Record of at least 15 Experiments [with a minimum of 6 from each section], to be performed by the students.

• Record of at least 5 Activities [with a minimum of 2 each from section A and section B], to be demonstrated by the teachers.

• The Report of the project to be carried out by the students.

Evaluation Scheme

Time allowed: Three hours, Max. Marks: 30

 Two experiments one from each section 8+8 Marks Practical record  [experiments and activities] 6 Marks Investigatory Project 3 Marks Viva on experiments, activities and project 5 Marks Total 30 marks

List of Experiments: CBSE Class 12 Physics Syllabus 2019-20

Section –A

1. To determine resistance  per cm  of a  given  wire  by  plotting  a  graph  for potential difference versus current.

2. To  find  resistance  of  a  given  wire  using  metre   bridge  and  hence determine  the resistivity (specific resistance) of its material.

3. To verify the laws of combination (series) of resistances using a metre bridge.

4. To verify the laws of combination (parallel) of resistances using a metre bridge.

5. To compare the EMF of two given primary cells using potentiometer.

6. To determine the internal resistance of given primary cell using potentiometer.

7. To determine  resistance  of a galvanometer by half-deflection method and to find its figure of merit.

8. To convert  the  given  galvanometer  (of known  resistance  and  figure  of merit)  into  a voltmeter of desired range and to verify the same.

9. To convert  the  given galvanometer (of known  resistance and  figure of merit) into an ammeter of desired range and to verify the same.

10. To find the frequency of AC mains with a sonometer.

Activities (For the purpose of demonstration only)

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 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.

List of Experiments: CBSE Class 12 Physics Syllabus 2019-20

Section-B

1. To find the value of v for different values of u in case of a concave mirror and to find the focal length.

2. To find the focal length of a convex  mirror, using a convex lens.

3. To  find  the  focal  length  of  a  convex  lens  by  plotting  graphs between u  and  v or between 1/u and 1/v.

4. To find the focal length of a concave lens, using a convex lens.

5. To  determine  angle  of  minimum  deviation  for  a  given  prism  by  plotting  a  graph between angle of incidence and angle of deviation.

6. To determine refractive index of a glass slab using a travelling microscope.

7. To find refractive index of a liquid by using convex  lens and  plane mirror.

8. To draw the I-V characteristic curve for a p-n junction in forward bias and reverse bias.

9. To draw the characteristic curve  of a zener diode and  to determine its reverse breaks down voltage.

10. To determine the wavelength of a laser beam by diffraction.

Activities (For the purpose of demonstration only)

1. To identify  a  diode,  an  LED, a  resistor  and  a  capacitor  from  a  mixed  collection  of such items.

2.   Use of 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 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.

Suggested Investigatory Projects: CBSE Class 12 Physics

1. To study various factors on which the internal resistance/EMF of a cell depends.

2. To study the  variations in current  flowing in a circuit containing an  LDR because of a variation in

(a)  the  power  of the  incandescent  lamp,  used to 'illuminate'  the  LDR (keeping  all  the lamps at a fixed distance).

(b) the distance of a incandescent lamp (of fixed power) used to 'illuminate' the LDR.

3. To find the refractive indices of (a) water  (b) oil (transparent) using a plane mirror, an equi convex  lens (made from a  glass of known  refractive index) and  an  adjustable object needle.

4. To design an appropriate logic gate  combination for a given truth table.

5. To investigate  the  relation  between the  ratio  of  (i) output  and  input  voltage  and  (ii) number of turns in the secondary coil and primary coil of a self-designed transformer.

6. To investigate  the  dependence of the  angle  of deviation  on  the  angle  of incidence using a hollow prism filled one  by one,  with different transparent fluids.

7. To estimate  the  charge induced  on each one  of the  two identical  styrofoam (or pith) balls suspended in a vertical plane by making use of Coulomb's law.

8. To study the  factor  on which  the  self-inductance  of a coil  depends by observing  the effect of this coil, when put in series with a resistor/(bulb) in a circuit fed up by an A.C. source of adjustable frequency.

9. To study the earth's magnetic field using a tangent galvanometer.

More details are available in the PDF of the syllabus.

Download CBSE Class 12 Physics Syllabus 2019-20 in PDF Format

CBSE Class 12th Physics Notes: All Chapters

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