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ELECTRIC CHARGES AND FIELDS Contents: 1.1 INTRODUCTION 1.2 ELECTRIC CHARGE 1.3 CONDUCTORS AND INSULATORS 1.4 CHARGING BY INDUCTION 1.5 BASIC PROPERTIES OF ELECTRIC CHARGE             1.5.1 Additivity of charges             1.5.2 Charge is conserved             1.5.3 Quantisation of charge 1.6 … Read more

Current Electricity [NCERT Class 12, Chapter 3] Contents: 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 3.5.1 Mobility 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 … Read more

Ray Optics and Optical Instruments (NCERT Chapter 9)

WORK, ENERGY and POWER (NCERT Chapter 6) Contents WORK, ENERGY AND POWER 6.1.1 The Scalar Product 6.2 NOTIONS OF WORK AND KINETIC ENERGY: THE WORK-ENERGY THEOREM 6.3 WORK 6.4 KINETIC ENERGY 6.5 WORK DONE BY A VARIABLE FORCE 6.6 THE WORK-ENERGY THEOREM FOR A VARIABLE FORCE 6.7 THE CONCEPT OF POTENTIAL ENERGY 6.8 THE CONSERVATION … Read more

LAWS OF MOTION (NCERT Chapter 5) Contents LAWS OF MOTION 5.2 ARISTOTLE’S FALLACY 5.3 THE LAW OF INERTIA 5.4 NEWTON’S FIRST LAW OF MOTION 5.5 NEWTON’S SECOND LAW OF MOTION Momentum Impulse 5.6 NEWTON’S THIRD LAW OF MOTION 5.7 CONSERVATION OF MOMENTUM 5.8 EQUILIBRIUM OF A PARTICLE 5.9 COMMON FORCES IN MECHANICS 5.9.1 Friction Rolling … Read more

MOTION IN A PLANE (NCERT Chapter 4) Contents: 1. VECTORS [Page No 65 – 72] 4.1 INTRODUCTION 4.2 SCALARS AND VECTORS            4.2.1 Position and Displacement Vectors            4.2.2 Equality of Vectors 4.3 MULTIPLICATION OF VECTORS BY REAL NUMBERS 4.4 ADDITION AND SUBTRACTION OF VECTORS — GRAPHICAL … Read more

MOTION IN A STRAIGHT LINE (NCERT) PART 1 [Page No 39 – 45] 3.1 INTRODUCTION 3.2 POSITION, PATH LENGTH AND DISPLACEMENT [Path length, Displacement] 3.3 AVERAGE VELOCITY AND AVERAGE SPEED 3.4 INSTANTANEOUS VELOCITY AND SPEED   PART 2 [Page No 45 – 51] 3.5 ACCELERATION 3.6 KINEMATIC EQUATIONS FOR UNIFORMLY ACCELERATED MOTION PART 3 [Page … Read more

UNITS AND MEASUREMENT (NCERT) PART 1 [Page No 16 – 22] 2.1 INTRODUCTION [Units, Fundamental Units or Base Units, Derived Units] 2.2 THE INTERNATIONAL SYSTEM OF UNITS [CGS system, FPS system, MKS system, SI system] 2.3 MEASUREMENT OF LENGTH 2.3.1 Measurement of Large Distances [parallax method] 2.3.2 Estimation of Very Small Distances: Size of a … Read more