 # WBCHSE Class 11 Physics Syllabus

Physics is the most motivating subject, which is full of wonders. This subject requires a lot of brain work, as it mainly deals with the study about the measurements, different laws of Newton’s, etc. The class 11 physics syllabus provided here help students to prepare for their exam more effectively. The important topic for class 11 physics includes – Laws of Motion, Behaviour of perfect gas and kinetic theory of gases, thermodynamics, heat transfer, Physical world and the measurements and lot more.

We at BYJU’S provide the syllabus for WBCHSE Class 11 Physics along with the mark-wise weightage for every chapter, so that students can have a good idea about the pattern of the exam.

### Unitwise Marks Weightage

 Unit Name Marks Unit – I Physical World & Measurement 02 Unit – II Kinematics 10 Unit – III Laws of motion 10 Unit- IV Work, energy & Power 05 Unit – V Motion of System of particles & Rigid Body 06 Unit- VI Gravitation 07 Unit- VII Properties of Bulk Matter 10 Unit- VIII Thermodynamics 05 Unit- IX Behaviour of perfect Gas & Kinetic theory of Gases 05 Unit- X Oscillations & waves 10 Total 70

Given below the detailed syllabus of West Bengal Board Class 11 Physics.

Unit – I Physical World & Measurement

Physics – scope and excitement; nature of physical laws; physics technology and society.
Need for measurement; unit of measurement; systems of units; SI units, fundamental and derived
units. Length, mass and time measurement; accuracy and precision of measuring instruments;
errors in measurement; significant figures.

Dimensions of physical quantities, dimensional analysis and its applications.

Unit – II Kinematics

Frame of reference (inertial and non-inertial frames). 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, position-time graphs, relations for uniformity
accelerated motion ( graphical treatment).

Scalar and vector quantities; position and displacement vectors, general vectors and notation,
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

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.

Dynamics of uniform circular motion; centripetal force, examples of circular motion (vehicle on

Unit- IV: 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 in one and two dimensions.

Unit- V: Motion of System of Particles and Rigid body

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 uniform rod.

Moment of a force, torque, angular momentum, conservation of angular momentum with some examples.

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

Keplar’s laws of planetary motion. The universal law of gravitation.

Acceleration due to gravity and its variation with attitude, depth and rotation of earth.

Gravitational potential energy; gravitational potential. Escape velocity. Orbital velocity of a satellite.
Geo-stationary satellites.

Unit-VII: Properties of Bulk Matter

Elastic behaviour, stress-strain relationship, Hooke’s law , Young modulus, bulk modulus, shear,
modulus of rigidity, poison’s ratio; elastic energy

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

Viscosity, stoke’s law , terminal velocity Reynold’s number, streamline and turbulent flow. Critical
velocity Bernoulli’s theorem and its applications.

Surface energy and surface tension, angle of contact, excess of pressure, application of surface
tension ideas to drops, bubbles and capaillary rise.

Heat temperature thermal expansion; thermal expansion of solids, liquids and gases ideal gas
laws, isothermal and adiabatic processes; anomalous expansion and its effect, specific heat
capacity; Cp, Cv- calorimetry; change of state – specific latent heat capacity.

Heat transfer – conduction; convection and radiation, blackbody radiation Kirchoff’s law, absorptive
and emissive powers and green house effect thermal conductivity, Newton’s law of cooling, Wein’s displacement law, stefan’s law.

Unit-VIII: Thermodynamics

Thermal equilibrium and definition of temperature (zeroth law of Thermodynamics). Heat, work
and internal energy. First law of thermodynamics.

Second law of thermodynamics; reversible and irreversible processes. Heat engines and
refrigerators.

Unit-IX: Behaviour of Perfect Gas and Kinetic Theory

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

Kinetic theory of gases- assumptions; concept of pressure. Kinetic energy and temperature.
Speed of gas molecules; degrees of freedom, law of equilibrium of energy (statement only) and
application to specific heats of gases; concept of mean free path, Avagadro’s number.

Unit- X: Oscillation and waves

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

Simple harmonic motion (S.H.M) and its equation; phase; oscillations of a 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 Longitudinal and transverse waves, speed of wave motion.

Displacement relation for a progressive wave. Principle of superposition of waves, reflection of
waves in string and organ pipes, fundamental mode and harmonics, beats, Doppler effect.

### West Bengal Board Class 11 Physics Practical Syllabus

Note; Every student will perform 15 experiments (8 from Section A & 7 from Section B). The
activities mentioned are for the purpose of demonstration by the teachers only. These are not to
be evaluated during the academic year. For evaluation in examination, student would be required
to perform two experiments- 1 out of 3 from Section A & 1 out of 3 from Section B.

Total Marks 2×15=30marks

SECTION A
Experiments

(Any 8 experiments out of the following to be performed by the students)

1. To measure diameter of a small spherical/cyclindrical body using Vernier callipers.
2. To measure internal diameter and depth of a given beaker/calorimeter using Vernier
Capllipers and hence find its volume.
3. To measure diameter of a given wire using screw guage.
4. To measure thickness of a given sheet using screw guage.
5. To measure volume of an irregular lamina using screw guage
6. To determine radius of curvature of a given spherical surface by a spherometer.
7. To find the weight of a given body using parallelogram law of vectors.
8. Using a simple pendulum plot L-T and L-T2 graphs. Hence find the effective length of
second’s pendulum using appropriate graph.
9. To study the relationship between force of limiting friction and normal reaction and to
find 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 by plotting graph
between force and sinø

Activities (for the purpose of demonstration only)

1. To make a paper scale of given least count, e.g 0.2cm, 0.5cm.
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 jet of water with angle of projection.
6. To study the conservation of energy of a ball rolling down on 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
Experiments

(Any 7 experiments out of the following to be performed by the students)

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 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 I/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 of a given (i) solid (ii) liquid 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 by observing capillary rise.
5. To study factors affecting the rate of loss of heat of a liquid.
6. To study the effect of load on depression of a suitably clamped meter scale loaded
i. At its end
ii. In the middle.

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