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.

## Download West Bengal Board Class 11 Physics Syllabus

### 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

level circular road, vehicle on banked road).

**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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