NCERT Syllabus for class 11 Physics is important for the students of class 11, as it gives a brief
idea about topics in Physics. Practicing solved and unsolved questions from NCERT Physics textbooks helps students
to have a better understanding of the subject, which helps to excel in the board examination as
well as in the competitive examination, such as JEE, NEET etc. NCERT syllabus helps students to
prepare a strategic plan for studying.
1. Physical World and Measurement
Physics - scope and excitement; nature of physical laws; Physics, technology and society.
Units and Measurement
Need for measurement: Units of measurement; systems of units; SI units, fundamental and derived units.
Length, mass and time measurements; accuracy and precision of measuringinstruments;
errors in measurement; significant figures.
Dimensions of physical quantities, dimensional analysis and its applications.
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).
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.
3. Laws of Motion
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
Dynamics of uniform circular motion: Centripetal force, examples of circular motion (vehicle on
a level circular road, vehicle on banked road).
4. Work, Energy and Power
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.
5. Motion of System of Particles and Rigid Body
System of Particles and Rotational Motion
Centre of mass of a two-particle system, momentum conservation and center of mass motion.
Centre of mass of a rigid body; center of mass of a uniform rod.
Moment of a force, torque, angular momentum, laws 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.
Keplar'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.
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.
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, Green house effect.
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.
9. Behaviour of Perfect Gases and Kinetic Theory of Gases
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.
10. Oscillations and Waves
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 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.
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