Physics Notes Class XI
As Per CBSE (NCERT) Books
Chapter Wise-Notes PDF ( Board Level )
Chapter 1 : Units, Dimensions and Vectors
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.
Chapter 2 : 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.
Chapter 3 : 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.
Chapter 4 : 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.
Chapter 5 : 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:
Chapter 6 : 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; laws of conservation of angular momentum and its applications.
Chapter 7 : Gravitation
Keplar's laws of planetary motion, universal law of gravitation. Acceleration due to gravity and its variation with altitude and depth.
Chapter 8 : Mechanical Properties of Solids
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Chapter 9 : Mechanical Properties of Fluids
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Chapter 10 : 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.
Chapter 11 : 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
Chapter 12 : 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.
Chapter 13 : Simple Harmonic Motion
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
Chapter 14 : Oscillations and waves
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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