PHYSICS
CBSE XI > PHYSICS

# 1.Physical World

 1.1. What is Physics? 1.2. Scope and Excitement of Physics 1.3. Physics, Technology and Society 1.4. Fundamental Forces in Nature 1.4.1. Gravitational Force 1.4.2. Electromagnetic Force 1.4.3. Strong Nuclear Force 1.4.4. Weak Nuclear Force 1.4.5. Towards Unification of Forces 1.5. Nature of Physical Laws

# 2.Units and Measurements

 2.1. Introduction 2.2. The International System of Units 2.3. Measurement of Length 2.3.1. Measurement of Large Distances 2.3.2. Estimation of Very Small Distances: Size of a Molecule 2.4. Measurement of Mass 2.4.1. Range of Masses 2.5. Measurement of Time 2.6. Accuracy, Precession of Instruments and Errors in Measurement 2.6.1. Absolute Error, Relative Error and Percentage Error 2.6.1. Absolute Error, Relative Error and Percentage Error 2.6.1. Absolute Error, Relative Error and Percentage Error 2.6.2. Combination of Errors 2.7. Significant Figures 2.7.1. Rules of Arithmetic Operations with Significant Figures 2.7.3. Rules for Determining the Uncertainty in the Results of Arithmetic Calculations 2.8. Dimensions of Physical Quantities 2.9. Dimensional Formula and Dimensional Equations 2.10. Dimensional Analysis and its Application 2.10.1. Checking the Dimensional Consistency of Equations 2.10.2. Deducing Relation among the Physical Quantities

# 3.Motion in a Straight Line

 3.1. Introduction 3.2. Position, Path Length and Displacement 3.3. Average Velocity and Average Speed 3.4. Instantaneous Velocity and Speed 3.5. Acceleration 3.6. Kinematic Equations for Uniformly Accelerated Motion 3.7. Relative Velocity

# 4.Motion in a Plane

 4.1. Introduction 4.2. Scalars and Vectors 4.2.1. Position and Displacement of Vectors 4.2.2. Equality of Vectors 4.3. Multiplication of Vectors by Real Numbers 4.4. Addition and Subtraction of Vectors – Graphical Method 4.5. Resolution of Vectors 4.6. Vector Addition – Analytical Method 4.7. Motion in a Plane 4.7.1. Position Vector and Displacement 4.8. Motion in a Plane with Constant Acceleration 4.9. Relative Velocity in Two Dimensions 4.10. Projectile Motion 4.11. Uniform Circular Motion

# 5.Laws of Motion

 5.1. Introduction 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 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 5.10. Circular Motion 5.11. Solving Problems in Mechanics

# 6.Work, Energy and Power

 6.1.Introduction 6.1.1. The Scalar Product 6.2. Notions of Work and Kinetic Energy: The Work-Energy Theorem 6.2. Notions of Work and Kinetic Energy: The Work-Energy Theorem 6.2. Notions of Work and Kinetic Energy: The Work-Energy Theorem 6.2. Notions of Work and Kinetic Energy: The Work-Energy Theorem 6.3. Work 6.3. Work 6.3. Work 6.4. Kinetic Energy 6.4. Kinetic Energy 6.4. Kinetic Energy 6.5. Work Done by Variable Force 6.6. The Work-Energy Theorem for a Variable Force 6.7. The Concept of Potential Energy 6.7. The Concept of Potential Energy 6.7. The Concept of Potential Energy 6.8. The Conservation of Mechanical Energy 6.8. The Conservation of Mechanical Energy 6.8. The Conservation of Mechanical Energy 6.9. The Potential Energy of a Spring 6.10. Various Forms of Energy: The Law of Conservation of Energy 6.10.1. Heat 6.10.2. Chemical Energy 6.10.3. Electrical Energy 6.10.4. The Equivalence of Mass and Energy 6.10.5. Nuclear Energy 6.10.6. The Principles of Conservation of energy 6.11. Power 6.11. Power 6.11. Power 6.12. Collisions 6.12.1. Elastic and Inelastic Collisions 6.12.2. Collisions in One Dimension 6.12.3. Collisions in Two Dimensions

# 7.Systems of Particles and Rotational Motion

 7.1. Introduction 7.1.1. What Kind of Motion can a Rigid Body Have? 7.2. Center of Mass 7.3. Motion of Center of Mass 7.4. Linear Momentum of particles 7.5. Vector Product of Two Vectors 7.6. Angular Velocity and its Relation with Linear Velocity 7.7. Torque and Angular Momentum 7.7.1. Momentum of Force (Torque) 7.7.2. Angular Momentum of a Particle 7.8. Equilibrium of a Rigid Body 7.8.1. Principle of Moments 7.8.2. Center of Gravity 7.9. Moment of Inertia 7.10. Theorems of Perpendicular and Parallel Axes 7.10. Theorems of Perpendicular and Parallel Axes 7.11. Kinematics of Rotational Motion about a Fixed Axis 7.12. Dynamics of Rotational Motion about a Fixed Axis 7.13. Angular Momentum in case of Rotation about a Fixed Axis 7.13.1. Conservation of Angular Momentum 7.14. Rolling Motion 7.14.1. Kinetic Energy of Rolling Motion

# 8.Gravitation

 8.1. Introduction 8.2. Kepler's Laws 8.2. Kepler's Laws 8.2. Kepler's Laws 8.3. Universal Law of Gravitation 8.4. The Gravitational Constant 8.5. Acceleration due to Gravity of the Earth 8.6. Acceleration due to Gravity Below and Above the Surface of Earth 8.6. Acceleration due to Gravity Below and Above the Surface of Earth 8.7. Gravitational Potential Energy 8.8. Escape Speed 8.8. Escape Speed 8.8. Escape Speed 8.10. Energy of an Orbiting Satellite 8.11. Geostationary and Polar Satellites 8.12. Weightlessness

# 9.Mechanical Properties of Solids

 9.1. Introduction 9.2. Elastic Behavior of Solids 9.3. Stress And Strain 9.3. Stress And Strain 9.4. Hooke's Law 9.5. Stress-Strain Curve 9.6. Elastic Module 9.6.1. Young's Modulus 9.6.2. Determination of Young's Modulus of the Material of a Wire 9.6.3. Shear Modulus 9.6.4. Bulk Modulus 9.7. Application of Elastic Behavior of Materials

# 10.Mechanical Properties of Fluids

 10.1. Introduction 10.2. Pressure 10.2.1. Pascal's Law 10.2.2. Variation of Pressure with Depth 10.2.3. Atmospheric Pressure and Gauge Pressure 10.2.3. Atmospheric Pressure and Gauge Pressure 10.2.4. Hydraulic Machines 10.3. Streamline Flow 10.4. Bernoulli's Principle 10.4.1. Speed of Efflux: Torricelli's Law 10.4.2. Venturi-Meter 10.4.3. Blood Flow and Heart Attack 10.4.4. Dynamic Lift 10.5. Viscosity 10.5.1. Stoke's Law 10.6. Reynolds Number 10.7. Surface Tension 10.7.1. Surface Energy 10.7.2. Surface Energy and Surface Tension 10.7.3. Angle of Contact 10.7.4. Drops and Bubbles 10.7.5. Capillary Rise 10.7.6. Detergents and Surface Tension

# 11.Thermal Properties of Matter

 11.1. Introduction 11.2. Temperature and Heat 11.3. Measurement of Temperature 11.4. Ideal Gas Equation and Absolute Temperature 11.5. Thermal Expansion 11.6. Specific Heat Capacity 11.7. Calorimetry 11.8. Change of State 11.8.1. Latent Heat 11.9. Heat Transfer 11.9.1. Conduction 11.9.2. Convection 11.9.3. Radiation 11.10. Newton's Law of Cooling

# 12.Thermodynamics

 12.1. Introduction 12.2. Thermal Equilibrium 12.3. Zeroth Law of Thermodynamics 12.3. Zeroth Law of Thermodynamics 12.3. Zeroth Law of Thermodynamics 12.4. Heat, Internal Energy and Work 12.5. The First Law of Thermodynamics 12.5. The First Law of Thermodynamics 12.5. The First Law of Thermodynamics 12.6. Specific Heat Capacity 12.6. Specific Heat Capacity 12.6. Specific Heat Capacity 12.6. Specific Heat Capacity 12.7. Thermodynamic State Variables and Equation of State 12.8. Thermodynamic Processes 12.8. Thermodynamic Processes 12.8. Thermodynamic Processes 12.8.1. Quasi Static Process 12.9. Heat Engines 12.9. Heat Engines 12.9. Heat Engines 12.10. Refrigerators and Heat Pumps 12.11. Second Law of Thermodynamics 12.11. Second Law of Thermodynamics 12.11. Second Law of Thermodynamics 12.12. Reversible and Irreversible Processes 12.12. Reversible and Irreversible Processes 12.12. Reversible and Irreversible Processes 12.13. Carnot Engine 12.13. Carnot Engine 12.13. Carnot Engine

# 13.Kinetic Theory

 13.1. Introduction 13.2. Molecular Nature of Matter 13.3. Behavior of Gases 13.4. Kinetic Theory of an Ideal Gas 13.4.1. Pressure of an Ideal Gas 13.4.2. Kinetic Interpretation of Temperature 13.5. Law of Equipartition of Energy 13.6. Specific Heat Capacity 13.6.1. Monatomic Gases 13.6.2. Diatomic Gases 13.6.3. Polyatomic Gases 13.6.4. Specific Heat Capacity of Solids 13.6.5. Specific Heat Capacity of Water 13.7. Mean Free Path

# 14.Oscillations

 14.1. Introduction 14.2. Periodic and Oscillatory Motions 14.2.1. Period and Frequency 14.3. Simple Harmonic Motion 14.4. Simple Harmonic Motion and Uniform Circular Motion 14.5. Velocity and Acceleration in Simple Harmonic Motion 14.6. Force Law for Simple Harmonic Motion 14.7. Energy in Simple Harmonic Motion 14.8. Some Systems Executing Simple Harmonic Motion 14.8.1. Oscillations due to a Spring 14.8.2. The Simple Pendulum 14.9. Damped Simple Harmonic Motion 14.10. Forced Oscillations and Resonance

# 15.Waves

 15.1. Introduction 15.2. Transverse and Longitudinal Waves 15.3. Displacement Reaction in a Progressive Wave 15.3. Displacement Reaction in a Progressive Wave 15.3. Displacement Reaction in a Progressive Wave 15.3.1. Amplitude and Phase 15.3.1. Amplitude and Phase 15.3.1. Amplitude and Phase 15.3.2. Wave Length and Angular Wave Number 15.3.3. Period, Angular Frequency and Frequency 15.4. The Speed of a Traveling Wave 15.4.1. Speed of a Transverse Wave on Stretched String 15.4.2. Speed of a Longitudinal Wave (Speed of Sound) 15.4.2. Speed of a Longitudinal Wave (Speed of Sound) 15.4.2. Speed of a Longitudinal Wave (Speed of Sound) 15.5. The Principle of Superposition of Waves 15.5. The Principle of Superposition of Waves 15.6. Reflection of Waves 15.6.1. Standing Waves and Normal Modes 15.6.1. Standing Waves and Normal Modes 15.7. Beats 15.8. Doppler Effect 15.8.1. Source Moving: Observer Stationary 15.8.2. Observer Moving: Source Stationary 15.8.3. Both Source and Observer Moving