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CBSE Class XI / XII, 2021, 2022, 2023

CBSE Class XII (NCERT), 2021, 2022, 2023, Physics eBook

Please click on the following chapters to go to eBooks


CHAPTER ONE
ELECTRIC CHARGES AND FIELDS Click Here for eBook on this chapter
1.1 Introduction
1.2 Electric Charges
1.3 Conductors and Insulators
1.4 Charging by Induction
1.5 Basic Properties of Electric Charge
1.6 Coulomb’s Law
1.7 Forces between Multiple Charges
1.8 Electric Field
1.9 Electric Field Lines
1.10 Electric Flux
1.11 Electric Dipole
1.12 Dipole in a Uniform External Field
1.13 Continuous Charge Distribution
1.14 Gauss’s Law
1.15 Application of Gauss’s Law

CHAPTER TWO
ELECTROSTATIC POTENTIAL AND CAPACITANCE
2.1 Introduction
2.2 Electrostatic Potential
2.3 Potential due to a Point Charge
2.4 Potential due to an Electric Dipole
2.5 Potential due to a System of Charges
2.6 Equipotential Surfaces
2.7 Potential Energy of a System of Charges
2.8 Potential Energy in an External Field
2.9 Electrostatics of Conductors
2.10 Dielectrics and Polarisation
2.11 Capacitors and Capacitance
2.12 The Parallel Plate Capacitor
2.13 Effect of Dielectric on Capacitance
2.14 Combination of Capacitors
2.15 Energy Stored in a Capacitor
2.16 Van de Graaff Generator

CHAPTER THREE
CURRENT ELECTRICITY
3.1 Introduction
3.2 Electric Current
3.3 Electric Currents in Conductors
3.4 Ohm’s law
3.5 Drift of Electrons and the Origin of Resistivity
3.6 Limitations of Ohm’s Law
3.7 Resistivity of various Materials
3.8 Temperature Dependence of Resistivity
3.9 Electrical Energy, Power
3.10 Combination of Resistors — Series and Parallel
3.11 Cells, emf, Internal Resistance
3.12 Cells in Series and in Parallel
3.13 Kirchhoff’s Laws
3.14 Wheatstone Bridge
3.15 Meter Bridge
3.16 Potentiometer

CHAPTER FOUR
MOVING CHARGES AND MAGNETISM
4.1 Introduction
4.2 Magnetic Force
4.3 Motion in a Magnetic Field
4.4 Motion in Combined Electric and Magnetic Fields
4.5 Magnetic Field due to a Current Element, Biot-Savart Law
4.6 Magnetic Field on the Axis of a Circular Current Loop
4.7 Ampere’s Circuital Law
4.8 The Solenoid and the Toroid
4.9 Force between Two Parallel Currents, the Ampere
4.10 Torque on Current Loop, Magnetic Dipole
4.11 The Moving Coil Galvanometer

CHAPTER FIVE
MAGNETISM AND MATTER
5.1 Introduction
5.2 The Bar Magnet
5.3 Magnetism and Gauss’s Law
5.4 The Earth’s Magnetism
5.5 Magnetisation and Magnetic Intensity
5.6 Magnetic Properties of Materials
5.7 Permanent Magnets and Electromagnets

CHAPTER SIX
ELECTROMAGNETIC INDUCTION
6.1 Introduction
6.2 The Experiments of Faraday and Henry
6.3 Magnetic Flux
6.4 Faraday’s Law of Induction
6.5 Lenz’s Law and Conservation of Energy
6.6 Motional Electromotive Force
6.7 Energy Consideration: A Quantitative Study
6.8 Eddy Currents
6.9 Inductance
6.10 AC Generator

CHAPTER SEVEN
ALTERNATING CURRENT
7.1 Introduction
7.2 AC Voltage Applied to a Resistor
7.3 Representation of AC Current and Voltage by Rotating Vectors — Phasors
7.4 AC Voltage Applied to an Inductor
7.5 AC Voltage Applied to a Capacitor
7.6 AC Voltage Applied to a Series LCR Circuit
7.7 Power in AC Circuit: The Power Factor
7.8 LC Oscillations
7.9 Transformers

CHAPTER EIGHT
ELECTROMAGNETIC WAVES
8.1 Introduction
8.2 Displacement Current
8.3 Electromagnetic Waves
8.4 Electromagnetic Spectrum

CHAPTER NINE
RAY OPTICS (GEOMETRIC OPTICS) AND OPTICAL INSTRUMENTS
9.1 Introduction
9.2 Reflection of Light by Spherical Mirrors
9.3 Refraction
9.4 Total Internal Reflection
9.5 Refraction at Spherical Surfaces and by Lenses
9.6 Refraction through a Prism
9.7 Dispersion by a Prism
9.8 Some Natural Phenomena due to Sunlight
9.9 Optical Instruments

CHAPTER TEN
WAVE OPTICS (PHYSICAL OPTICS)
10.1 Introduction
10.2 Huygens Principle 353
10.3 Refraction and reflection of plane waves using Huygens Principle
10.4 Coherent and Incoherent Addition of Waves
10.5 Interference of Light Waves and Young’s Experiment
10.6 Diffraction
10.7 Polarisation

CHAPTER ELEVEN
DUAL NATURE OF RADIATION AND MATTER
11.1 Introduction
11.2 Electron Emission
11.3 Photoelectric Effect
11.4 Experimental Study of Photoelectric Effect
11.5 Photoelectric Effect and Wave Theory of Light
11.6 Einstein’s Photoelectric Equation: Energy Quantum of Radiation
11.7 Particle Nature of Light: The Photon
11.8 Wave Nature of Matter
11.9 Davisson and Germer Experiment

CHAPTER TWELVE
ATOMS
12.1 Introduction
12.2 Alpha-particle Scattering and Rutherford’s Nuclear Model of Atom
12.3 Atomic Spectra
12.4 Bohr Model of the Hydrogen Atom
12.5 The Line Spectra of the Hydrogen Atom
12.6 DE Broglie’s Explanation of Bohr’s Second Postulate of Quantisation

CHAPTER THIRTEEN
NUCLEI
13.1 Introduction
13.2 Atomic Masses and Composition of Nucleus
13.3 Size of the Nucleus
13.5 Nuclear Force
13.6 Radioactivity
13.7 Nuclear Energy

CHAPTER FOURTEEN
SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS
14.1 Introduction
14.2 Classification of Metals, Conductors and Semiconductors
14.3 Intrinsic Semiconductor
14.4 Extrinsic Semiconductor
14.5 p-n Junction
14.6 Semiconductor diode
14.7 Application of Junction Diode as a Rectifier
14.8 Special Purpose p-n Junction Diodes
14.9 Junction Transistor
14.10 Digital Electronics and Logic Gates
14.11 Integrated Circuits

CHAPTER FIFTEEN
COMMUNICATION SYSTEMS
15.1 Introduction
15.2 Elements of a Communication System
15.3 Basic Terminology Used in Electronic Communication Systems
15.4 Bandwidth of Signals
15.5 Bandwidth of Transmission Medium
15.6 Propagation of Electromagnetic Waves
15.7 Modulation and its Necessity
15.8 Amplitude Modulation
15.9 Production of Amplitude Modulated Wave
15.10 Detection of Amplitude Modulated Wave

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Kinematics
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Electrostatics
16.Electric Charges and Fields
17.Electrostatic Potential and Capacitance
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21.Electromagnetic Induction
22.Alternating Current
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Cell: Structure and Functions
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14.Respiration in Plants
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25.Human Reproduction
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Genetics and Evolution
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28.Molecular Basis of Inheritance
29.Evolution
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32.Microbes in Human Welfare
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Ecology
35.Organisms and Populations
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