# CBSE Class 11 Physics Syllabus: 2020-21 (Revised & Reduced By 30%)

Learn new CBSE Class 11 Physics Syllabus 2020-21  (Revised & Reduced By 30%). With this article, you can also download the PDF of CBSE 11th Physics Syllabus.

Created On: Sep 28, 2020 17:02 IST
CBSE Class 11 Physics Syllabus:2020-21

CBSE Class 11 Physics Syllabus 2020-21  (Revised & Reduced By 30%) is available for download in PDF format. Link to download NCERT based CBSE Syllabus for Class 11 Physics is given at the end of this article. The syllabus contains complete details about Course Structure, Syllabus, Exam Pattern & other important details. The important portion of CBSE Class 11 Physics Syllabus 2020 – 21 is given below:

## CBSE Class 11 Physics Syllabus: 2020- 2021 (Revised & Reduced By 30%)

(Theory) - Time: 3 hrs., Max Marks: 70

 Unit Topics No. of Periods Marks Unit–I Physical World and Measurement 6 23 Chapter–1: Physical World Chapter–2: Units and Measurements Unit-II Kinematics 16 Chapter–3: Motion in a Straight Line Chapter–4: Motion in a Plane Unit–III Laws of Motion 10 Chapter–5: Laws of Motion Unit–IV Work,  Energy and Power 12 17 Chapter–6: Work, Energy and Power Unit–V Motion of System of Particles and Rigid Body 16 Chapter–7: System of Particles and Rotational Motion Unit-VI Gravitation 8 Chapter–8: Gravitation Unit–VII Properties of Bulk  Matter 22 20 Chapter–9: Mechanical Properties of Solids Chapter–10: Mechanical Properties of Fluids Chapter–11: Thermal Properties of Matter Unit–VIII Thermodynamics 10 Chapter–12: Thermodynamics Unit–IX Behaviour of Perfect Gases and Kinetic Theory of Gases 08 Chapter–13: Kinetic Theory Unit–X Oscillations and Waves 23 10 Chapter–14: Oscillations Chapter–15: Waves Total 131 70

Unit I: Physical World and Measurement (6 Periods)

Chapter–1: Physical World

Physics-scope and excitement; nature of physical laws; Physics, technology and society. (To be discussed as a part of Introduction and integrated with other topics)

Chapter–2: Units and Measurements

Need for measurement: Units of measurement; systems of units; SI units, fundamental and derived units. Length, mass  and time measurements; accuracy and precision of measuring instruments; errors in measurement; significant figures. Dimensions of physical quantities, dimensional analysis and its applications.

Unit II: Kinematics (16 Periods)

Chapter–3: Motion in a Straight Line

Elementary  concepts of differentiation  and integration  for describing  motion,  uniform and non-   uniform  motion,  average  speed  and  instantaneous  velocity,  uniformly accelerated motion, velocity - time and position-time graphs. Relations for uniformly accelerated motion (graphical treatment).

Chapter–4: Motion in a Plane

Scalar and vector quantities; position and displacement vectors, general vectors and their notations; equality of vectors, multiplication of vectors by a real number; addition and subtraction of vectors, relative velocity, Unit vector; resolution of a vector in a plane, rectangular components, Scalar and Vector product of vectors.

Motion in a plane, cases of uniform velocity and uniform acceleration-projectile motion, uniform circular motion.

Unit III: Laws of Motion (10 Periods)

Chapter–5: Laws of Motion

Intuitive concept of force, Inertia, Newton's first law of motion; momentum and Newton's second law of motion; impulse; Newton's third law of motion.(recapitulation only)

Law of conservation of linear momentum and its applications.

Equilibrium of concurrent forces, Static and kinetic friction, laws of friction, rolling friction, lubrication.

Dynamics  of uniform  circular  motion: Centripetal  force, examples of circular motion (vehicle on a level circular road, vehicle on a banked road).

Unit IV: Work, Energy and Power (12 Periods)

Chapter–6: Work, Energy and Power

Work  done by  a constant force  and a variable  force;  kinetic  energy, work-energy theorem, power.

Notion of potential energy, potential energy of a spring, conservative forces: conservation of mechanical energy (kinetic and potential energies); non-conservative forces:  motion  in  a vertical  circle;  elastic  and  inelastic  collisions in one and two dimensions.

Unit V: Motion of System of Particles and Rigid Body (16 Periods)

Chapter–7: System of Particles and Rotational Motion

Centre of mass of a two-particle  system, momentum conservation  and centre of mass motion. Centre of mass of a rigid body; centre of mass of a uniform rod.

Moment of a force, torque, angular momentum, law of conservation   of  angular momentum and its applications.

Equilibrium  of  rigid  bodies,  rigid  body  rotation  and equations  of  rotational motion, comparison of linear and rotational motions.

Moment of inertia, radius of gyration, values of moments of inertia for simple geometrical objects (no derivation).

Unit VI: Gravitation (8 Periods)

Chapter–8: Gravitation

Universal law of  gravitation. Acceleration due to  gravity (recapitulation only) and its variation with altitude and depth.

Gravitational potential energy and gravitational potential, escape velocity, orbital velocity of a satellite, Geo-stationary satellites.

Unit VII: Properties of Bulk  Matter (22 Periods)

Chapter–9: Mechanical Properties of Solids

Stress-strain relationship, Hooke's law, Young's modulus, bulk modulus

Chapter–10: Mechanical Properties of Fluids

Pressure  due to  a fluid  column;  Pascal's  law  and its  applications  (hydraulic  lift  and hydraulic brakes), effect of gravity on fluid pressure.

Viscosity,  Stokes' law,  terminal  velocity,  streamline  and turbulent  flow,  critical  velocity, Bernoulli's theorem and its applications.

Surface energy and surface tension, angle of contact, excess of pressure across a curved surface, application of surface tension ideas to drops, bubbles and capillary rise.

Chapter–11: Thermal Properties of Matter

Heat, temperature,( recapitulation only)  thermal expansion; thermal expansion of solids, liquids and gases, anomalous expansion of water; specific heat capacity; Cp,  Cv  - calorimetry; change of state - latent heat capacity.

Heat transfer-conduction, convection and radiation (recapitulation only), thermal conductivity, qualitative ideas of Blackbody radiation, Wein's displacement Law, Stefan's law, Greenhouse effect.

Unit VIII: Thermodynamics (10 Periods)

Chapter–12: Thermodynamics

Thermal equilibrium and definition of temperature (zeroth law of thermodynamics), heat, work  and  internal  energy.  First  law  of  thermodynamics,  isothermal  and  adiabatic processes. Second law of thermodynamics: reversible and irreversible processes

Unit IX: Behaviour of Perfect Gases and Kinetic Theory of Gases (08 Periods)

Chapter–13: Kinetic Theory

Equation of state of a perfect gas, work done in compressing a gas.

Kinetic theory of gases - assumptions, concept of pressure. Kinetic interpretation of temperature; rms speed of gas molecules; degrees of freedom, law of equi-partition of energy (statement only) and application to specific heat capacities of gases; concept of mean free path, Avogadro's number.

Unit X: Oscillations and Waves (23 Periods)

Chapter–14: Oscillations

Periodic  motion  - time  period,  frequency,  displacement  as a function  of time,  periodic functions.

Simple harmonic motion (S.H.M) and its equation; phase; oscillations of a loaded spring- restoring force and force constant; energy in S.H.M.  Kinetic and potential energies; simple pendulum derivation of expression for its time period. Free, forced and damped oscillations (qualitative ideas only), resonance.

Chapter–15: Waves

Wave motion: Transverse and longitudinal waves, speed of travelling wave, displacement relation for a progressive wave, principle of superposition of waves, reflection of waves, standing waves in strings and organ pipes, Beats

CBSE Class 12 Physics Practicals: 2020-21  (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 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.

CBSE Class 12 Physics Practicals: 2020-21 - Evaluation Scheme

Time Allowed: Three hours, Max. Marks: 30

 Two experiments one from each section (8+8)Marks Practical record (experiment and activities) 7Marks Viva on experiments, and activities 7 Marks Total 30 Marks

Experiments:

SECTION–A

1.To measure diameter of a small spherical/cylindrical body and to measure internal diameter and depth of a given beaker/calorimeter using Vernier Callipers and hence find its volume.

2.To  measure diameter  of a given  wire  and thickness  of a given  sheet using  screw gauge.

OR

To determine volume of an irregular lamina using a screw gauge.

3.To determine radius of curvature of a given spherical surface by a spherometer.

4.To determine the mass of two different objects using a beam balance.

5.To find the weight of a given body using parallelogram law of vectors.

6.Using a simple pendulum, plot its L-T2 graph and use it to find the effective length of second's pendulum.

OR

To study variation of time period of a simple pendulum of a given length by taking bobs of same size but different masses and interpret the result.

7. To study the relationship between force of limiting friction and normal reaction and to  find the co-efficient of friction between a block and a horizontal surface.

OR

To  find  the  downward force,  along  an inclined  plane,  acting  on  a roller  due to the gravitational pull of the earth and studying its relationship with the angle of inclination θ by plotting a graph between force and sin θ.

Activities

1. To make a paper scale of given least count,  e.g., 0.2cm, 0.5 cm.

2. To determine mass of a given body using a metre scale by principle of moments.

3. To plot a graph for a given set of data, with proper choice of scales and error bars.

4. To measure the force of limiting friction for rolling of a roller on a horizontal plane.

5. To study the variation in range of a projectile with angle of projection.

6.  To study the conservation of energy of a ball rolling down on an inclined plane (using a double inclined plane).

7. To study dissipation of energy of a simple pendulum by plotting a graph between square of amplitude and time.

Experiments

SECTION–B

1. To determine Young's modulus of elasticity of the material of a given wire.

OR

To find the force constant of a helical spring by plotting a graph between load and extension.

1. To study the variation in volume with pressure for a sample of air at constant temperature by plotting graphs between P and V, and between P and 1/V.

2. To determine the surface tension of water by capillary rise method.

OR

To determine the coefficient of viscosity of a given viscous liquid by measuring terminal velocity of a given spherical body.

3. To study the relationship between the temperature of a hot body and time by plotting a cooling curve.

4. To determine specific heat capacity of a given solid by method of mixtures.

5. To study the relation between frequency and length of a given wire under constant tension using a sonometer.

OR

To study the relation between the length of a given wire and tension for constant frequency using a sonometer.

7. To find the speed of sound in air at room temperature using a resonance tube by two resonance positions.

Activities

1. To observe change of state and plot a cooling curve for molten wax.

2. To observe and explain the effect of heating on a bi-metallic strip.

3. To note the change in level of liquid in a container on heating and interpret the observations.

4. To study the effect of detergent on surface tension of water by observing capillary rise.

5. To study the factors affecting the rate of loss of heat of a liquid.

6. To study the effect of load on depression of a suitably clamped metre scale loaded at (i) its end (ii) in the middle.

7. To observe the decrease in pressure with increase in velocity of a fluid.

## Download CBSE Class 12 Physics Syllabus 2020-21 in PDF format

List of recommended books by Jagran Josh

• NCERT Textbooks for Class 11 Physics (With Solutions)

• NCERT Exemplar: Class 11 Physics - All Chapters

• Pradeep Fundamental Physics for Class 11 (Part I and Part II)

• Concept of Physics Part-1 by H.C Verma

Previous  CBSE Class 12 Physics Syllabus 2019-20 is also available here for reference

Theory: Time - 3 hours, Maximum Marks – 70

 No. of Periods Marks Unit–I Physical World  and Measurement 10 23 Chapter–1: Physical World Chapter–2: Units and Measurements Unit-II Kinematics 24 Chapter–3: Motion in a Straight Line Chapter–4: Motion in a Plane Unit–III Laws of Motion 14 Chapter–5: Laws of Motion Unit–IV Work, Energy and Power 12 17 Chapter–6: Work, Energy  and Power Unit–V Motion of System of Particles and Rigid Body 18 Chapter–7: System of Particles and Rotational Motion Unit-VI Gravitation 12 Chapter–8: Gravitation Unit–VII Properties of Bulk Matter 24 20 Chapter–9: Mechanical Properties of Solids Chapter–10: Mechanical Properties of Fluids Chapter–11: Thermal Properties of Matter Unit–VIII Thermodynamics 12 Chapter–12: Thermodynamics Unit–IX Behaviour of Perfect Gases and Kinetic Theory of Gases 08 Chapter–13: Kinetic Theory Unit–X Oscillations and Waves 26 10 Chapter–14: Oscillations Chapter–15: Waves Total 160 70

Unit I: Physical World  and Measurement (10 Periods)

Chapter–1: Physical World

Physics-scope and excitement;  nature of physical  laws;  Physics,  technology and  society.

 List of Recommended Books for CBSE Class 11 Physics • NCERT Textbooks for Class 11 Physics (With Solutions) • NCERT Exemplar: Class 11 Physics - All Chapters • Pradeep Fundamental Physics for Class 11 (Part I and Part II) • Concept of Physics Part-1 by H.C Verma

Chapter–2: Units and Measurements

Need for measurement: Units of measurement; systems of units; SI units, fundamental  and   derived  units.  Length, mass  and   time  measurements; accuracy and  precision  of  measuring  instruments;  errors in  measurement; significant figures. Dimensions of physical quantities, dimensional analysis and its applications.

NCERT Exemplar: CBSE Class 11 Physics - All Chapters

Unit II: Kinematics (24 Periods)

Chapter–3: Motion in a Straight Line

Frame of reference, Motion in a straight line:  Position-time  graph,  speed and velocity.

Elementary concepts of differentiation and  integration for describing motion, uniform and  non- uniform motion, average speed and  instantaneous velocity, uniformly accelerated motion, velocity - time and position-time graphs. Relations for uniformly accelerated motion (graphical treatment).

Chapter–4: Motion in a Plane

Scalar  and   vector   quantities;  position  and   displacement  vectors,  general vectors and  their notations; equality of vectors, multiplication of vectors by a real number; addition and  subtraction of vectors, relative velocity, Unit vector; resolution of a vector  in a plane, rectangular components, Scalar and  Vector product  of vectors.

Motion  in  a  plane,  cases  of  uniform  velocity  and   uniform  acceleration- projectile motion, uniform circular motion.

CBSE Class 11 Physics NCERT Solutions: All Chapters

Unit III: Laws of Motion (14 Periods)

Chapter–5: Laws of Motion

Intuitive  concept of force,  Inertia,  Newton's first  law  of motion;  momentum and  Newton's second law of motion; impulse; Newton's third law of motion.

Law of conservation of linear momentum and its applications.

Equilibrium  of  concurrent forces,  Static  and  kinetic  friction,  laws  of  friction, rolling friction, lubrication.

Dynamics  of uniform  circular  motion:  Centripetal  force,  examples  of circular motion (vehicle on a level circular road,  vehicle on a banked road).

Unit IV: Work, Energy and Power (12 Periods)

Chapter–6: Work, Energy and Power

Work done by a  constant force  and  a  variable  force;  kinetic  energy, work- energy theorem, power.

Notion of potential energy, potential energy of a spring, conservative forces: conservation of mechanical energy (kinetic and potential energies); non- conservative forces: motion in a vertical circle; elastic and  inelastic collisions in one  and  two dimensions.

Unit V: Motion of System of Particles and Rigid Body (18 Periods)

Chapter–7: System of Particles and Rotational Motion

Centre of mass of a two-particle system, momentum conservation and  centre of mass motion. Centre of mass of a rigid body; centre of mass of a uniform rod. Moment   of  a  force,  torque,   angular  momentum,  law  of  conservation   of angular momentum and  its applications.

Equilibrium  of  rigid  bodies,  rigid  body  rotation  and  equations  of  rotational motion, comparison of linear and  rotational motions.

Moment of inertia, radius of gyration, values of moments of inertia for simple geometrical objects (no  derivation). Statement of parallel and  perpendicular axes theorems and their applications.

Unit VI: Gravitation (12 Periods)

Chapter–8: Gravitation

Kepler's  laws  of planetary  motion,  universal  law  of gravitation.  Acceleration due to gravity and  its variation with altitude and  depth.

Gravitational  potential  energy  and   gravitational  potential,  escape  velocity, orbital velocity of a satellite, Geo-stationary satellites.

Unit VII:   Properties of Bulk Matter (24 Periods)

Chapter–9: Mechanical Properties of Solids

Elastic  behaviour,  Stress-strain  relationship, Hooke's law,  Young's modulus, bulk modulus, shear modulus of rigidity, Poisson's ratio; elastic energy.

Chapter–10: Mechanical Properties of Fluids

Pressure due  to a fluid column; Pascal's law and  its applications (hydraulic lift and hydraulic brakes), effect of gravity on fluid pressure.

Viscosity, Stokes' law, terminal velocity, streamline and  turbulent flow, critical velocity, Bernoulli's theorem and  its applications.

Surface  energy  and   surface  tension,  angle  of  contact, excess  of  pressure across a curved  surface, application of surface tension ideas to drops, bubbles and  capillary rise.

Chapter–11: Thermal Properties of Matter

Heat,  temperature, thermal  expansion;  thermal  expansion  of solids,  liquids and  gases, anomalous expansion of water;  specific heat  capacity; Cp,  Cv - calorimetry; change of state - latent heat  capacity.

Heat transfer-conduction, convection and radiation, thermal conductivity, qualitative  ideas  of  Blackbody radiation, Wein's  displacement  Law,  Stefan's law, Greenhouse effect.

Unit VIII: Thermodynamics (12 Periods)

Chapter–12: Thermodynamics

Thermal  equilibrium  and   definition  of  temperature  (zeroth   law  of thermodynamics), heat,  work and internal energy. First law of thermodynamics, isothermal and adiabatic processes. Second law of thermodynamics: reversible and  irreversible processes, Heat engine and  refrigerator.

Unit IX: Behaviour of Perfect Gases and Kinetic Theory of Gases (08 Periods)

Chapter–13: Kinetic Theory

Equation of state of a perfect gas, work done  in compressing a gas.

Kinetic   theory    of   gases  -   assumptions,   concept   of   pressure.   Kinetic interpretation  of  temperature;  rms  speed  of  gas  molecules;  degrees  of freedom, law of equi-partition of energy (statement only) and  application to specific  heat   capacities  of  gases;  concept of  mean free  path,   Avogadro's number.

Unit X: Oscillations and Waves (26 Periods)

Chapter–14: Oscillations

Periodic motion - time period, frequency, displacement as a  function of time, periodic functions.

Simple harmonic motion (S.H.M)  and  its equation; phase; oscillations of a loaded  spring-  restoring  force  and  force  constant; energy in  S.H.M.  Kinetic and  potential energies; simple pendulum derivation of expression for its time period.   Free,    forced   and    damped  oscillations   (qualitative   ideas   only), resonance.

Chapter–15: Waves

Wave  motion: Transverse and  longitudinal waves, speed of travelling wave, displacement  relation  for  a  progressive  wave,   principle  of  superposition  of waves,  reflection   of  waves,  standing   waves  in   strings   and   organ   pipes,  fundamental mode  and harmonics, Beats, Doppler effect.

CBSE Class 11 Practicals (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.

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

CBSE Class 11 Physics Practical Exam: Evaluation Scheme

Time allowed: Three hours, Max. Marks: 30

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

Section –A: List of Experiments

1. To measure diameter of a small spherical/cylindrical body  and  to measure internal diameter and  depth  of a given beaker/calorimeter using Vernier Callipers and  hence find its volume.

2. To measure diameter  of a  given  wire  and  thickness  of a  given  sheet using  screw gauge.

3. To determine volume of an irregular lamina using screw gauge.

4. To determine radius of curvature of a given spherical surface by a spherometer.

5. To determine the mass of two different objects using a beam balance.

6. To find the weight of a given body using parallelogram law of vectors.

7. Using a simple pendulum, plot its L-T2 graph  and  use it to find the effective length of second's pendulum.

8. To study variation  of time  period  of a simple  pendulum  of a given  length  by taking bobs of same size but different masses and  interpret the result.

9. To study the relationship between force of limiting friction and  normal reaction and  to find the co- efficient of friction between a block and a horizontal surface.

10. To  find  the  downward   force,  along  an  inclined  plane,  acting  on  a  roller  due  to gravitational pull of the earth  and  study its relationship with the angle of inclination θ by plotting graph  between force and sin θ.

Activities

(for the purpose of demonstration only)

1. To make  a paper scale of given least count, e.g., 0.2cm, 0.5 cm.

2. To determine mass of a given body using a metre  scale by principle of moments.

3. To plot a graph  for a given set of data,  with proper  choice of scales and  error bars.

4. To measure the force of limiting friction for rolling of a roller on a horizontal plane.

5. To study the variation in range of a projectile with angle of projection.

6. To study the conservation of energy of a ball rolling down on an inclined plane (using a double inclined plane).

7. To study dissipation of energy of a  simple pendulum by plotting a  graph  between square of amplitude and time.

Section–B: List of Experiments

1. To determine Young's modulus of elasticity of the material of a given wire.

2. To find  the  force  constant of a  helical  spring  by plotting  a  graph  between load  and extension.

3. To  study the  variation  in  volume  with  pressure for  a  sample  of  air  at  constant temperature by plotting graphs between P and V, and between P and 1/V.

4. To determine the surface tension of water by capillary rise method.

5. To  determine  the  coefficient  of  viscosity  of  a  given  viscous  liquid  by  measuring terminal velocity of a given spherical body.

6. To study the relationship between the temperature of a hot body and time by plotting a cooling curve.

7. To determine specific heat  capacity of a given solid by method of mixtures.

8. To study the  relation between frequency and  length of a given  wire under  constant tension using sonometer.

9. To study the  relation  between the  length  of a  given  wire  and  tension  for constant frequency using sonometer.

10. To find the speed of sound in air at room temperature using a resonance tube by two resonance positions.

Activities (for the purpose of demonstration only):

1. To observe change of state and  plot a cooling curve for molten wax.

2. To observe and explain the effect of heating on a bi-metallic strip.

3. To  note  the  change in  level  of  liquid  in  a  container  on  heating  and  interpret  the observations.

4. To study the effect of detergent on surface tension of water by observing capillary rise.

5. To study the factors affecting the rate of loss of heat  of a liquid.

6. To study the effect of load on depression of a suitably clamped metre  scale loaded at

(i) its end (ii) in the middle.

7. To observe the decrease in pressure with increase in velocity of a fluid.

Download CBSE Class 11 Physics Syllabus 2019-20 in PDF Format

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