# CBSE Physics Class 11 Syllabus 2023 – Chapters, Topics, Weightage

CBSE Physics Class 11 Syllabus 2023, Chapter, Topics has been revealed. Class 11 students of 2020-21, who are looking for the Information of CBSE Physics Class 11 Syllabus 2020 may not have to worry about it. As we have provided the Information for Physics Syllabus of Central Board of Secondary Education (CBSE) for Class 11 of 2020 in this article. Also, we have provided the pdf file for the students to Download PDF of CBSE 11th Class Physics Syllabus for 2020 (सीबीएसई भौतिकी कक्षा 11 का सिलेबस). After going through this article, Students needs to immediately start their preparation.

## CBSE Physics Class 11 Syllabus 2023

Here are the units and No.of Periods and Marks of the CBSE Physics Class 11 Syllabus 2023.

 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

### Physics CBSE Class XI Syllabus 2023

Unit I: Physical World and Measurement

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

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

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

Unit IV: Work, Energy and Power

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

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

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

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

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.

The 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

Unit X: Oscillations and Waves

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 a travelling wave, displacement a relation for a progressive wave, principle of superposition of waves, reflection of waves, standing waves in strings and organ pipes, Beats

## CBSE Physics Class 11 Syllabus 2023-20

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

### Physics CBSE Class XI Syllabus 2018 – 2019

Unit – I: Physical World and Measurement 10 Periods

Chapter – 1: Physical World

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

Chapter – 2: Units and Measurements

CBSE Physics Class 11 Syllabus: 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 20 Periods

Chapter – 3: Motion in a Straight Line

The 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.

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

The notion of potential energy, the 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 a mass of a two-particle system, momentum conservation and centre of mass motion.
Centre of a mass of a rigid body; the 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, a 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, the 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 20 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), the 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. The first law of thermodynamics, isothermal and adiabatic processes. The 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, the concept of pressure. Kinetic interpretation of temperature; rms speed of gas molecules; degrees of freedom, the law of equipartition of energy (statement only) and application to specific heat capacities of gases; the concept of the mean free path, Avogadro’s number.

Unit – X: Mechanical Waves and Ray Optics 16 Periods

Chapter – 14: Oscillations and Waves

CBSE Physics Class 11 Syllabus: 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.

Wave motion: Transverse and longitudinal waves, speed of wave motion, 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.

Chapter – 15: RAY OPTICS 18 Periods

Ray Optics : Reflection of light, spherical mirrors, mirror formula, 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 and dispersion of light through a prism.

Scattering of light – blue colour of the sky and reddish appearance of the sun at sunrise and sunset.

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

## Practical Syllabus for Physics CBSE Class 11

CBSE Physics Class 11 Syllabus: 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.
 Time Allowed : 3 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 projects 5 Marks Total 30 Marks

### List of Experiments: Section A

• To measure the 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.
• To determine the mass of two different objects using a beam balance.
• To find the weight of a given body using the parallelogram law of vectors.
• Using a simple pendulum, plot its L-T2graph and use it to find the effective length of second’s pendulum.
• To measure the diameter of a given wire and thickness of a given sheet using screw gauge.
• To determine the volume of an irregular lamina using screw gauge.
• To determine the radius of curvature of a given spherical surface by a spherometer.
• To study the relationship between the force of Limiting friction and normal reaction and to find the coefficient of friction between a block and a horizontal surface.
• 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 θby plotting graph between force and sin θ.
• To study the variation of a time period of a simple pendulum of a given length by taking bobs of the same size but different masses and interpret the result.

Activities (for the purpose of demonstration only)

• To measure the force of limiting friction for rolling of a roller on a horizontal plane.
• To study the variation in the range of a projectile with the angle of projection.
• To study the conservation of energy of a ball rolling down on an inclined plane (using a double inclined plane).
• To make a paper scale of given least count, e.g., 0.2cm, 0.5 cm.
• To determine the mass of a given body using a metre scale by the principle of moments.
• To plot a graph for a given set of data, with the proper choice of scales and error bars.
• To study the dissipation of energy of a simple pendulum by plotting a graph between square of amplitude and time.

#### List of Experiments: Section B

• To determine Young’s modulus of elasticity of the material of a given wire.
• To determine the surface tension of water by capillary rise method.
• To determine the coefficient of viscosity of a given viscous liquid by measuring the terminal velocity of a given spherical body.
• To study the relationship between the temperature of a hot body and time by plotting a cooling curve.
• To determine the specific heat capacity of a given solid by a method of mixtures.
• To study the relation between frequency and length of a given wire under constant tension using sonometer.
• To find the force constant of a helical spring by plotting a graph between load and extension.
• 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.
• To find the speed of sound in air at room temperature using a resonance tube by two resonance positions.
• To study the relation between the length of a given wire and tension for constant frequency using sonometer.

Activities (For the purpose of demonstration only)

• To observe the change of state and plot a cooling curve for molten wax.
• To study the effect of detergent on the surface tension of water by observing capillary rise.
• To study the factors affecting the rate of loss of heat of a Liquid.
• To study the effect of load on the depression of a suitably clamped metre scale loaded at (i) its end (ii) in the middle.
• To observe and explain the effect of heating on a bi-metallic strip.
• To note the change in the level of liquid in a container on heating and interpret the observations.
• To observe the decrease in pressure with an increase in velocity of a fluid.

## Prescribed books for CBSE Physics Class 11 Syllabus

• Physics Part – I, Textbook for Class XI, Published by NCERT