CBSE Physics Class 11
CBSE CLASS 11: AN OVERVIEW
CBSE Class 11 is a crucial year for students because it sets the foundation for all the important topics that will be covered not only in class 12 but in further studies too. It is important to study sincerely in Class 11 not only for the CBSE Board exams but also for the competitive exams that will ensure entry into a good college. Students should utilize the Class 11 academic year to build their basics, doing so will help them to face the board exam confidently next year.
PHYSICS XI
Class XI (Theory)
TERM – I
Time: one and half hours. Max Marks: 35
Syllabus assigned for first term


No. of Periods 
Marks 
Unit–I 
Physical World and Measurement 
6 
20 

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 
15 

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 


Total 
68 
35 
Unit I: Physical World and Measurement
Chapter1: Physical World
Physicsscope and excitement; nature of physical laws; Physics, technology, and society. (To be discussed as a part of Introduction and integrated with other topics)
Chapter2: 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
Chapter3: Motion in a Straight Line
Elementary concepts of differentiation and integration for describing motion, uniform and nonuniform motion, average speed and instantaneous velocity, uniformly accelerated motion, velocity time and positiontime graphs.
Relations for uniformly accelerated motion (graphical treatment).
Chapter4: 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 accelerationprojectile motion, uniform circular motion.
Unit III: Laws of Motion
Chapter5: 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
Chapter6: Work, Energy and Power
Work done by a constant force and a variable force; kinetic energy, workenergy theorem, power.
Notion of potential energy, potential energy of a spring, conservative forces: conservation of mechanical energy (kinetic and potential energies); nonconservative 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
Chapter7: System of Particles and Rotational Motion
Centre of mass of a twoparticle 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, Geostationary satellites.
TERM – II
Syllabus assigned for Term II
Unit 

Periods 
Marks 

Properties of Bulk Matter 
22 
23 

Chapter–9: Mechanical Properties of Solids 


Chapter–10: Mechanical Properties of Fluids 


Chapter–11: Thermal Properties of Matter 

UnitVIII 
Thermodynamics 
10 


Chapter–12: Thermodynamics 

UnitIX 
Behaviour of Perfect Gases and Kinetic Theory of Gases 
08 


Chapter–13: Kinetic Theory 
12 

UnitX 
Oscillations and Waves 
23 


Chapter–14: Oscillations 


Chapter–15: Waves 


Total 
63 
35 
Unit VII: Properties of Bulk Matter
Chapter9: Mechanical Properties of Solids
Stressstrain relationship, Hooke’s law, Young’s modulus, bulk modulus
Chapter10: 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; $mathrm{C}_{mathrm{p}}$, $mathrm{C}_{mathrm{v}}$ – calorimetry; change of state latent heat capacity.
Heat transferconduction, convection, and radiation (recapitulation only), thermal conductivity, qualitative ideas of Blackbody radiation, Wein’s displacement Law, Stefan’s law, Greenhouse effect .
Unit VIII: Thermodynamics
Chapter12: 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
Chapter13: 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 equipartition 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
Chapter14: 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.
Chapter15: 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
PRACTICALS
Syllabus for TERM I
The record, to be submitted by the students, at the time of their First term examination, has to include:
Record of at least 4 Experiments, to be performed by the students
Record of at least 3 Activities [with 3 each from section and section , to be demonstrated by teacher.
Time Allowed: One and half hours Max. Marks: 30
Two experiments one from each section 
8 Marks 
Practical record (experiment and activities) 
2 Marks 
Viva on experiments, and activities 
5 Marks 
Total 
15 Marks 
Experiments
 To measure diameter of a small spherical/cylindrical body and to measure internal diameter and depth of a given beaker/calorimeter using Vernier Calipers and hence find its volume.
 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 screw gauge.
 To determine radius of curvature of a given spherical surface by a spherometer.
 To determine the mass of two different objects using a beam balance.
 To find the weight of a given body using parallelogram law of vectors.
 Using a simple pendulum, plot its $LT^{2}$ 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.
 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 gravitational pull of the earth and study its relationship with the angle of inclination $theta$ by plotting graph between force and $sin theta$.
Activities
 To make a paper scale of given least count, e.g., $0.2 mathrm{~cm}, 0.5 mathrm{~cm}$.
 To determine mass of a given body using a metre scale by principle of moments.
 To plot a graph for a given set of data, with proper choice of scales and error bars.
 To measure the force of limiting friction for rolling of a roller on a horizontal plane.
 To study the variation in range of a projectile with angle of projection.
 To study the conservation of energy of a ball rolling down on an inclined plane (using a dou
ble inclined plane).  To study dissipation of energy of a simple pendulum by plotting a graph between square of amplitude and time.
Syllabus for TERM II
The record, to be submitted by the students, at the time of their annual examination, has to include:
Record of at least 4 Experiments, to be performed by the students
Record of at least 3 Activities [with 3 each from section A and section B], to be demonstrated by teacher.
Time Allowed: One and half hours Max. Marks: 30
Two experiments one from each section 
8Marks 
Practical record (experiment and activities) 
2Marks 
Viva on experiments, and activities 
5 Marks 
Total 
15 Marks 
Experiments
 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.
 To study the variation in volume with pressure for a sample of air at constant temperature by plotting graphs between and , and between and .
 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.
 To study the relationship between the temperature of a hot body and time by plotting a cooling curve.
 To determine specific heat capacity of a given solid by method of mixtures.
 To study the relation between frequency and length of a given wire under constant tension using sonometer.
OR
To study the relation between the length of a given wire and tension for constant frequency using sonometer.
 To find the speed of sound in air at room temperature using a resonance tube by two resonance positions.
Activities
 To observe change of state and plot a cooling curve for molten wax.
 To observe and explain the effect of heating on a bimetallic strip.
 To note the change in level of liquid in a container on heating and interpret the observations.
 To study the effect of detergent on 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 depression of a suitably clamped metre scale loaded at (i) its end (ii) in the middle.
 To observe the decrease in pressure with increase in velocity of a fluid.
NCERT Solutions For Physics Class 11
The CBSE course structure is designed in a manner to ensure that students do not go through a lot of pressure, moreover, books are made interactive and interesting for students to enjoy their studies. A lot of fun activities are included in between the chapters to help students learn in a playful way. It makes the process of conveying knowledge to the students efficient and healthy.
 Chapter 1 Physical World
 Chapter 2 Units and Measurements
 Chapter 3 Motion in a Straight Line
 Chapter 4 Motion in a Plane
 Chapter 5 Laws of Motion
 Chapter 6 Work, Energy and Power
 Chapter 7 System of Particles and Rotational Motion
 Chapter 8 Gravitation
 Chapter 9 Mechanical Properties of Solids
 Chapter 10 Mechanical Properties of Fluids
 Chapter 11 Thermal Properties of Matter
 Chapter 12 Thermodynamics
 Chapter 13 Kinetic Theory
 Chapter 14 Oscillations
 Chapter 15 Waves
Important Questions For Physics Class 11
The CBSE course structure is designed in a manner to ensure that students do not go through a lot of pressure, moreover, books are made interactive and interesting for students to enjoy their studies. A lot of fun activities are included in between the chapters to help students learn in a playful way. It makes the process of conveying knowledge to the students efficient and healthy.
 Chapter 1 Physical World
 Chapter 2 Units and Measurements
 Chapter 3 Motion in a Straight Line
 Chapter 4 Motion in a Plane
 Chapter 5 Laws of Motion
 Chapter 6 Work, Energy and Power
 Chapter 7 System of Particles and Rotational Motion
 Chapter 8 Gravitation
 Chapter 9 Mechanical Properties of Solids
 Chapter 10 Mechanical Properties of Fluids
 Chapter 11 Thermal Properties of Matter
 Chapter 12 Thermodynamics
 Chapter 13 Kinetic Theory
 Chapter 14 Oscillations
 Chapter 15 Waves
CBSE Class 11 Videos
https://player.vimeo.com/video/429897952https://www.youtube.com/watch?v=SVgNy5w4GvAhttps://player.vimeo.com/video/429897952https://www.youtube.com/watch?v=SVgNy5w4GvA