CBSE 12 Physics

01 Electric Charges and Fields

17 Topics

01.01 Electric Charge

01.02 Conductors, Semiconductors and Insulators

01.03 Basic Properties of Electric Charge

01.04 Electrostatic Induction

01.05 Coulomb’s Law

01.06 Force Between Multiple Charges

01.07 Electric Field

01.08 Electric field due to a system of charges

01.09 Electric Field Lines and Physical Significance of Electric Field

01.10 Electric Flux

01.11 Electric Dipole, Electric Field of Dipole

01.12 Dipole in Uniform External Field

01.13 Continuous charge distribution: Surface, linear and volume charge densities and their electric fields

01.14 Gauss Law

01.15 Field due to an infinitely long straight uniformly charged wire

01.16 Field Due to Uniformly Charged infinite Plane Sheet

01.17 Electric Field Due to Uniformly Charged Thin Spherical Shell

03 Current Electricity

13 Topics

3.01 Electric Current

3.02 Ohm’s Law

3.03 Drift of Electrons and Mobility

3.04 Limitation of Ohm’s law, Resistivity

3.05 Temperature dependence of Resistivity

3.06 Ohmic Losses, Electrical Energy and Power

3.07 Combination of Resistors

3.08 Cell, EMF and Internal Resistance

3.09 Cells in series and in parallel

3.10 Kirchhoff’s Law

3.11 Wheatstone Bridge

3.12 Meter Bridge

3.13 Potentiometer

04 Moving Charges and Magnetism

18 Topics

4.01 Concept of Magnetic Field

4.02 Magnetic Force on Current Carrying Conductor

4.03 Motion of a Charge in Magnetic Field

4.04 Velocity Selector

4.06 Biot Savart’s Law

4.07 Magnetic Field on the Axis of Circular Current Carrying Loop

4.08 Ampere’s Circuital Law

4.09 Proof and Applications of Ampere’s Circuital Law

4.10 The Solenoid

4.12 Force Between Two Parallel Current Carrying Conductor

4.13 Torque on a rectangular current loop with its plane aligned with Magnetic Field

4.14 Torque on a rectangular current loop with its plane at some angle with Magnetic Field

4.15 Circular Current Loop as Magnetic Dipole

4.16 The Magnetic Dipole Moment of a Revolving Electron

4.17 The Moving Coil Galvanometer

4.18 Conversion of Galvanometer to Ammeter and Voltmeter

05 Magnetism and Matter

14 Topics

5.01 Magnetic Phenomenon and Bar Magnets

5.02 Bar Magnet and Magnetic Field Lines

5.03 Bar magnet as an equivalent solenoid

5.04 Magnetic dipole in a uniform magnetic field

5.05 Gauss’s Law in Magnetism

5.06 The Earth’s Magnetism

5.07 Magnetic Declination and Inclination

5.08 Magnetization and Magnetic Intensity

5.09 Magnetic Susceptibility and Magnetic Permeability

5.10 Magnetic Properties of Materials – Diamagnetism

5.11 Magnetic Properties of Materials – Paramagnetism

5.12 Ferromagnetism

5.13 Hysteresis

5.14 Permanent Magnets and Electromagnets

06 Electromagnetic Induction

11 Topics

6.01 Experiments of Faraday and Henry

6.02 Magnetic Flux And Faraday’s Law of Electromagnetic induction

6.03 Lenz Law and Conservation of Energy

6.04 Motional Electromotive Force

6.05 Motional EMF and Energy Consideration

6.06 Eddy Currents

6.07 Applications of Eddy Currents

6.08 Mutual Inductance

6.09 Self-Inductance

6.10 Energy Stored in an Inductor

6.11 AC Generator

07 Alternating Current

18 Topics

7.01 AC Current – Introduction

7.02 AC Voltage Applied to a Resistor

7.03 Power in Resistive Circuit

7.04 Representation of AC current and Voltages: Phasor Diagram

7.05 AC Voltage applied to an Inductor

7.06 Power in Inductive Circuit

7.07 AC Voltage applied to a Capacitor

7.08 Power in Capacitive Circuit

7.09 AC Voltage applied to Series LCR Circuit: Phasor Diagram Solution

7.10 AC Voltage applied to Series LCR Circuit: Analytical Solution

7.11 Resonance in AC Circuit

7.12 Sharpness of Resonance and Q Factor

7.13 Power in AC Circuit: The Power Factor

7.14 LC Oscillator – Derivation of Current

7.15 LC Oscillator – Explanation of Phenomena

7.16 Analogous Study of Mechanical Oscillations with LC Oscillations

7.17 Construction and Working Principle of Transformers

7.18 Step Up, Step Down Transformers, and Limitations of Practical Transformer

08 Electromagnetic Waves

9 Topics

8.01 Introduction to Electromagnetic Waves

8.02 Displacement Current

8.03 Continuity of Current

8.04 Maxwell’s Equations and Lorentz Force

8.05 Sources of Electromagnetic Waves

8.06 Nature of Electromagnetic Waves

8.07 Electromagnetic Spectrum: Radio Waves, Microwaves

8.08 Electromagnetic Spectrum: Infrared Waves and Visible Light

8.09 Electromagnetic Spectrum: Ultraviolet Rays, X-rays and ƴ-rays

02 Electrostatic Potential and Capacitance

18 Topics

2.01 Electrostatic Potential Energy

2.02 Electrostatic Potential

2.03 Potential due to Point Charge

2.04 Potential due to an Electric Dipole

2.05 Potential due to System of Charges

2.06 Equipotential Surfaces

2.07 Relation between Electric field and Electric potential

2.08 Expression for Electric Potential Energy of System of Charges

2.09 Potential Energy in External Field

2.10 Potential energy of a dipole in an external field

2.11 Electrostatics of Conductors

2.12 Dielectrics and Polarization

2.13 Capacitors and Capacitance

2.14 The Parallel Plate Capacitor

2.15 Effect of Dielectric on Capacitance

2.16 Series and Parallel Combination of Capacitors

2.17 Energy Stored in Capacitor

2.18 Van de Graaff Generator

09 Ray Optics and Optical Instruments

23 Topics

9.01 Reflection of Light by Spherical Mirrors: Introduction, Laws and Sign Convention

9.02 Focal Length of Spherical Mirrors

9.03 The Mirror Equation

9.04 Refraction of Light

9.05 Total Internal Reflection

9.06 Applications of Total Internal Reflection: Mirage, sparkling of diamond and prism

9.07 Applications of Total Internal Reflection: Optical fibres

9.08 Refraction at Spherical Surface

9.09 Refraction by Lens: Lens-maker’s formula

9.10 Lens formula, Image Formation in Lens

9.11 Linear Magnification and Power of Lens

9.12 Combination of thin lenses in contact

9.13 Refraction through a Prism

9.14 Angle of Minimum Deviation and its Relation with Refractive Index

9.15 Dispersion by Prism

9.16 Some Natural Phenomena due to Sunlight : The Rainbow

9.17 Some Natural Phenomena due to Sunlight : Scattering of Light

9.18 Functioning of Lens in Human Being

9.19 Vision Problems and their remedies

9.20 Simple Microscope

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19 Topics

10.01 Wave Optics: Introduction and Historical Background

10.02 The Concept of Wavefront

10.03 Huygens Principle

10.04 Refraction of Plane Wave using Huygens Principle

10.05 Reflection of Plane Wave using Huygens Principle

10.06 The Doppler Effect

10.07 Red shift, Blue shift and Doppler Shift

10.08 Coherent and Incoherent Source

10.09 Coherent and Incoherent Addition of Waves: Constructive Interference

10.10 Coherent and Incoherent Addition of Waves: Destructive Interference

10.11 Conditions for Constructive and Destructive interference

10.12 Interference of Light waves and Young’s Experiment

10.13 Young’s Experiment, Positions of Maximum and Minimum Intensities and Fringe Width

10.14 Outcomings of Young’s Experiment

10.15 Diffraction of Light

10.16 Diffraction of light due to Single Slit

10.17 Resolving Power of Optical Instruments

10.18 Concept of Polarisation

10.19 Polarisation by scattering and Reflection

11 Dual Nature of Radiation and Matter

12 Topics

11.01 Dual Nature of Radiation and Matter: Historical Journey

11.02 Electron Emission

11.03 Photoelectric Effect: Concept and Experimental Discoveries

11.04 Experimental Study of Photoelectric Effect

11.05 Effect of Potential Difference on Photoelectric Current

11.06 Effect of Frequency of Incident Radiation on Stopping Potential

11.07 Photoelectric Effect and Wave Theory of Light

11.08 Einstein’s Photoelectric Equation: Energy Quantum of Radiation

11.09 Particle Nature of Light: The Photon

11.10 Wave Nature of Matter – I

11.11 Wave Nature of Matter – II

11.12 Davisson and Germer Experiment

10 Topics

12.01 Thomson’s Model of Atom

12.02 Alpha-Particle Scattering and Rutherford’s Nuclear Model of Atom

12.03 ⍺-Particle Trajectory and Electron Orbits

12.04 Atomic Spectra

12.05 Drawbacks of Rutherford’s Nuclear Model of Atom

12.06 Postulates of Bohr’s Model of Hydrogen Atom

12.07 Bohr’s Radius and Total Energy of an electron in Bohr’s Model of Hydrogen Atom

12.08 Energy Levels

12.09 Rydberg Constant and the line Spectra of Hydrogen Atom

12.10 De Broglie’s Explanation of Bohr’s Second Postulate of Quantisation and Limitations of Bohr’s Atomic Model

14 Topics

13.01 Atomic Masses and Composition of Nucleus

13.02 Discovery of Neutrons

13.03 Size of Nucleus

13.04 Mass-Energy Equivalence and Concept of Binding Energy

13.05 Binding Energy per Nucleon

13.06 Nuclear Forces

13.07 Concept of Radioactivity and Law of Radioactive Decay

13.08 Half-life and Mean-life

13.09 Radioactive Decay : ⍺-decay, β-decay and -decay

13.10 Nuclear Fission

13.11 Chain Reaction

Nuclear Reactor

13.13 Nuclear Fusion

13.14 Stellar Energy

14 Semiconductor Electronics: Materials, Devices and Simple Circuits

23 Topics

14.01 Semiconductors Electronics: Introduction

14.02 Band Theory of Solids

14.03 Intrinsic Semiconductor

14.04 Extrinsic Semiconductor

14.05 Energy Band structure of Extrinsic Semiconductors

14.06 p-n Junction

14.07 Semiconductor Diode in Forward Bias

14.08 Semiconductor Diode in Reverse Bias

14.09 Application of Junction Diode – Half Wave Rectifier

14.10 Application of Junction Diode – Full Wave Rectifier

14.11 Zener Diode

14.12 Optoelectronic Junction Devices: Photodiode and Solar Cell

14.13 Light Emitting Diode (LED)

14.14 Concept and Structure of Bipolar Junction Transistor

14.15 Operation of Transistor

14.16 Common Emitter Transistor Characteristics

14.17 Transistor As a Switch

14.18 Transistor as an Amplifier: Principle

14.19 Transistor as an Amplifier – Common Emitter Configuration

14.20 Transistor as an Oscillator

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15 Communication System

7 Topics

15.01 Communication System

15.02 Basic Terminology Used In Electronic Communication system

15.03 Bandwidth of Signal and Bandwidth of Transmission Medium

15.04 Propagation of Electromagnetic Waves

15.05 Need of Modulation

15.06 Types of Modulation and Concept of Amplitude Modulation

15.07 Production and Detection of Amplitude Modulated Wave

9.18 Functioning of Lens in Human Being

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