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  • Class 6
    Science Mathematics History Civics Geography
    • Food: Where Does It Come From?
    • Components of Food
    • Fibre to Fabric
    • Sorting Materials into Groups
    • Separation of Substances
    • Changes Around Us
    • Getting to Know Plants
    • Body Movements
    • Living Organisms and Surroundings
    • Motion and Measurement of Distances
    • Light, Shadows and Reflections
    • Electricity and Circuits
    • Fun with Magnets
    • Water
    • Air Around Us
    • Garbage In, Garbage Out
    • Knowing Our Numbers
    • Whole Numbers
    • Playing With Numbers
    • Basic Geometrical Ideas
    • Understanding Elementary Shapes
    • Integers
    • Fractions
    • Decimals
    • Data Handling
    • Mensuration
    • Algebra
    • Ratio and Proportion
    • Symmetry
    • Practical Geometry
    • What, Where, How and When?
    • On the Trail of the Earliest People
    • From Gathering to Growing Food
    • In The Earliest Cities
    • What Books and Burials Tell Us
    • Kingdoms, Kings and an Early Republic
    • New Questions and Ideas
    • Ashoka, the Emperor Who Gave Up War
    • Vital Villages, Thriving Towns
    • Traders, Kings and Pilgrims
    • New Empires and Kingdoms
    • Buildings, Paintings and Books
    • Understanding Diversity
    • Diversity and Discrimination
    • What Is Government?
    • Key Elements of a Democratic Government
    • Panchayati Raj
    • Rural Administration
    • Urban Administration
    • Rural Livelihoods
    • Urban Livelihoods
    • The Earth in the Solar System
    • Globe: Latitudes and Longitudes
    • Motions of the Earth
    • Maps
    • Major Domains of the Earth
    • Major Landforms of the Earth
    • Our Country - India
    • India: Climate, Vegetation and Wildlife
  • Class 7
    Science Mathematics History Civics Geography
    • Nutrition in Plants
    • Nutrition in Animals
    • Fibre to Fabric
    • Heat
    • Acids, Bases and Salts
    • Physical and Chemical Changes
    • Weather, Climate and Adaptations of Animals to Climate
    • Winds, Storms and Cyclones
    • Soil
    • Respiration in Organisms
    • Transportation in Animals and Plants
    • Reproduction in Plants
    • Motion and Time
    • Electric Current and its Effects
    • Light
    • Water : A Precious Resource
    • Forests: Our Lifeline
    • Wastewater Story
    • Integers
    • Fractions and Decimals
    • Data Handling
    • Simple Equations
    • Lines and Angles
    • The Triangle and Its Properties
    • Congruence of Triangles
    • Comparing Quantities
    • Rational Numbers
    • Practical Geometry
    • Perimeter and Area
    • Algebraic Expressions
    • Exponents and Powers
    • Symmetry
    • Visualising Solid Shapes
    • Tracing Changes Through A Thousand Years
    • New Kings and Kingdoms
    • The Delhi Sultans
    • Tribes, Nomads and Settled Communities
    • The Mughal Empire
    • Devotional Paths to the Divine
    • Rulers and Buildings
    • The Making of Regional Cultures
    • Towns, Traders and Craftspersons
    • Eighteenth-Century Political Formations
    • On Equality
    • Role of the Government in Health
    • How the State Government Works
    • Growing Up As Boys and Girls
    • Women Change the World
    • Understanding Media
    • Understanding Advertising
    • Markets Around Us
    • A Shirt in the Market
    • Struggles for Equality
    • Environment
    • Inside Our Earth
    • Our Changing Earth
    • Air
    • Water
    • Natural Vegetation and Wildlife
    • Human Environment - Settlement, Transport and Communication
    • Human Environment Interactions: The Tropical and Subtropical Region
    • Life in the Temperate Grasslands
    • Life in the Deserts
  • Class 8
    Science Mathematics History Civics Geography
    • Crop Production and Management
    • Micro-Organisms : Friend Or Foe
    • Synthetic Fibres and Plastics
    • Materials: Metals and Non Metals
    • Coal and Petroleum
    • Combustion and Flame
    • Conservation of Plants and Animals
    • Cell - Structure and Functions
    • Reproduction in Animals
    • Reaching the Age of Adolescence
    • Force and Pressure
    • Friction
    • Sound
    • Chemical Effects of Electric Current
    • Some Natural Phenomena
    • Light
    • Stars and the Solar System
    • Pollution of Air and Water
    • Rational Numbers
    • Linear Equations in One Variable
    • Understanding Quadrilaterals
    • Practical Geometry
    • Data Handling
    • Squares and Square Roots
    • Cubes and Cube Roots
    • Comparing Quantities
    • Algebraic Expressions and Identities
    • Visualising Solid Shapes
    • Mensuration
    • Exponents and Powers
    • Direct and Inverse Proportions
    • Factorisation
    • Introduction to Graphs
    • Playing With Numbers
    • How, When and Where
    • From Trade to Territory: The Company Establishes Power
    • Ruling The Countryside
    • Tribals, Dikus and the Vision of a Golden Age
    • When People Rebel: 1857 and After
    • Colonialism and the City: The Story of an Imperial Capital
    • Weavers, Iron Smelters and Factory Owners
    • Civilising the Native, Educating the Nation
    • Women, Caste and Reform
    • The Changing World of Visual Arts
    • The Making of the National Movement: 1870s-1947
    • India after Independence
    • The Indian Constitution
    • Understanding Secularism
    • Why Do We Need A Parliament?
    • Understanding Laws
    • Judiciary
    • Understanding Our Criminal Justice System
    • Understanding Marginalisation
    • Confronting Marginalisation
    • Public Facilities
    • Law and Social Justice
    • Resources
    • Land, Soil, Water, Natural Vegetation and Wildlife Resources
    • Mineral and Power Resources
    • Agriculture
    • Industries
    • Human Resources
  • Class 9
    Physics Chemistry Biology Mathematics Geography Economics
    • Motion
    • Force and Laws of Motion
    • Gravitation
    • Work and Energy
    • Sound
    • Matter in Our Surroundings
    • Is Matter Around Us Pure?
    • Atoms and Molecules
    • Structure of the Atom
    • The Fundamental Unit of Life
    • Tissues
    • Diversity in Living Organisms
    • Why Do We Fall Ill?
    • Natural Resources
    • Improvement in Food Resources
    • Linear Equations in Two Variables
    • Quadrilaterals
    • Number System
    • Polynomials
    • Coordinate Geometry
    • Introduction to Euclid's Geometry
    • Lines and Angles
    • Triangles
    • Areas of Parallelograms and Triangles
    • Circles
    • Geometric Constructions
    • Heron's Formula
    • Surface Areas and Volumes
    • Statistics
    • Probability
    • India - Size and Location
    • Physical Features of India
    • Drainage of India
    • Climate of India
    • Natural Vegetation and Wildlife
    • Population
    • The Story of Village Palampur
    • People as Resource
    • Poverty as a Challenge
    • Food Security in India
  • Class 10
    Physics Chemistry Biology Mathematics History Civics Geography Economics
    • Electricity
    • Light - Reflection and Refraction
    • The Human Eye and The Colourful World
    • Magnetic Effects of Electric Current
    • Sources of Energy
    • Acids, Bases and Salts
    • Periodic Classification of Elements
    • Chemical Reactions and Equations
    • Metals and Non Metals
    • Carbon and Its Compounds
    • Life Processes
    • Control and Coordination
    • How Do Organisms Reproduce?
    • Heredity and Evolution
    • Environment
    • Management of Natural Resources
    • Real Numbers
    • Polynomials
    • Pair of Linear Equations in 2 Variables
    • Quadratic Equations
    • Arithmetic Progression
    • Triangles
    • Coordinate Geometry
    • Introduction to Trigonometry
    • Some Applications of Trigonometry
    • Circles
    • Constructions
    • Areas Related to Circles
    • Surface Areas and Volumes
    • Statistics
    • Probability
    • The Rise of Nationalism in Europe
    • The Nationalist Movement in Indo-China
    • Nationalism in India
    • The Making of a Global World
    • The Age of Industrialisation
    • Work, Life and Leisure: Cities in the Contemporary World
    • Print Culture and the Modern World
    • Novels, Society and History
    • Power Sharing
    • Federalism
    • Democracy and Diversity
    • Gender, Religion and Caste
    • Popular Struggles and Movements
    • Political Parties
    • Outcomes of Democracy
    • Challenges to Democracy
    • Resources and Development
    • Forest and Wildlife Resources
    • Water Resources
    • Agriculture
    • Minerals and Energy Resources
    • Manufacturing Industries
    • Lifelines of National Economy
    • Development
    • Sectors of the Indian Economy
    • Money and Credit
    • Globalisation and the Indian Economy
    • Consumer Rights
  • Class 11-commerce
    Accountancy Mathematics Economics Business Studies
    • Introduction to Accounting
    • Theory Base of Accounting
    • Recording of Transactions - I
    • Recording of Transactions - II
    • Bank Reconciliation Statement
    • Trial Balance and Rectification of Errors
    • Depreciation, Provisions and Reserves
    • Bills of Exchange
    • Questions & Answers
    • Sets
    • Relations and Functions
    • Trigonometric Functions
    • Principle of Mathematical Induction
    • Complex Numbers and Quadratic Equations
    • Linear Inequalities
    • Permutations and Combinations
    • Binomial Theorem
    • Sequences and Series
    • Straight Lines
    • Conic Sections
    • Introduction to Three Dimensional Geometry
    • Limits and Derivatives
    • Mathematical Reasoning
    • Probability
    • Statistics
    • Indian Economy on the Eve of Independence
    • Indian Economy 1950-1990
    • Liberalisation, Privatisation and Globalisation: An Appraisal
    • Poverty
    • Human Capital Formation in India
    • Rural Development
    • Employment: Growth, Informalisation and Other Issues
    • Infrastructure
    • Environment and Susutainable Development
    • Comparative Development Experiences of India and its Neighbours
    • Nature and Purpose of Business
    • Forms of Business Organisation
    • Private, Public and Global Enterprises
    • Business Services
    • Emerging Modes of Business
    • Social Responsibility of Business and Business Ethics
    • Formation of a Company
    • Sources of Business Finance
    • Small Business
    • Internal Trade
    • International Business - I
    • International Business - II
  • Class 11-science
    Chemistry Biology Mathematics Physics
    • Some Basic Concepts of Chemistry
    • Structure of Atom
    • Classification of Elements and Periodicity in Properties
    • Chemical Bonding and Molecular Structure
    • States of Matter
    • Thermodynamics
    • Equilibrium
    • Redox Reactions
    • Hydrogen
    • The s-Block Elements
    • The p-Block Elements.
    • Organic Chemistry
    • Hydrocarbons
    • Environmental Chemistry
    • Human Physiology
    • The Living World
    • Biological Classification
    • Plant Kingdom
    • Animal Kingdom
    • Morphology of Flowering Plants
    • Anatomy of Flowering Plants
    • Structural Organisation in Animals
    • Cell : The Unit of Life
    • Biomolecules
    • Cell Cycle and Cell Division
    • Transport in Plants
    • Mineral Nutrition
    • Photosynthesis in Higher Plants
    • Respiration in Plants
    • Plant Growth and Development
    • Digestion and Absorption
    • Breathing and Exchange of Gases
    • Body Fluids and Circulation
    • Excretory Products and their Elimination
    • Locomotion and Movement
    • Neural Control and Coordination
    • Chemical Coordination and Integration
    • Sets
    • Relations and Functions
    • Trigonometric Functions
    • Principle of Mathematical Induction
    • Complex Numbers and Quadratic Equations
    • Linear Inequalities
    • Permutations and Combinations
    • Binomial Theorem
    • Sequences and Series
    • Straight Lines
    • Conic Sections
    • Introduction to Three Dimensional Geometry
    • Limits and Derivatives
    • Mathematical Reasoning
    • Probability
    • Statistics
    • Units and Measurement FREE
    • Motion in a Straight Line
    • Motion in a Plane
    • Laws of Motion
    • Work, Energy and Power
    • System of Particles and Rotational Motion
    • Gravitation
    • Mechanical Properties of Solids
    • Mechanical Properties of Fluids
    • Thermal Properties of Matter
    • Thermodynamics
    • Kinetic Theory
    • Oscillations
    • Waves
    • Physical World
  • Class 12-commerce
    Business Studies Accountancy Mathematics Economics
    • Nature and Significance of Management
    • Principles of Management
    • Business Environment
    • Planning
    • Organising
    • Staffing
    • Directing
    • Controlling
    • Financial Management
    • Financial Markets
    • Marketing
    • Consumer Protection
    • Accounting for Partnership: Basic Concepts FREE
    • Reconstitution: Change in Existing Profit Sharing Ratio
    • Reconstitution: Admission of a Partner
    • Reconstitution: Retirement/Death of a Partner
    • Dissolution of Partnership Firm
    • Accounting for Share Capital
    • Issue and Redemption of Debentures
    • Financial Statements of the Company
    • Analysis of Financial Statements
    • Accounting Ratios
    • Cash Flow Statements
    • Relations and Functions
    • Inverse Trigonometric Functions
    • Matrices
    • Determinants
    • Continuity and Differentiability
    • Applications of Derivatives
    • Integrals
    • Applications of Integrals
    • Differential Equations
    • Vector Algebra
    • Three Dimensional Geometry
    • Linear Programming
    • Probability
    • Introduction
    • The Theory of the Firm under Perfect Competition
    • Market Equilibrium
    • Theory of Consumer Behaviour
    • Production and Costs
    • Non-Competitive Markets
    • National Income Accounting
    • Money and Banking
    • Income Determination
    • The Government: Budget and the Economy
    • Open Economy Macroeconomics
  • Class 12-science
    Biology Mathematics Physics Chemistry
    • Reproduction in Organisms
    • Sexual Reproduction in Flowering Plants
    • Human Reproduction
    • Reproductive Health
    • Principles of Inheritance and Variation
    • Molecular Basis of Inheritance
    • Evolution
    • Human Health and Disease
    • Strategies for Enhancement in Food Production
    • Microbes in Human Welfare
    • Biotechnology : Principles and Processes
    • Biotechnology and its Applications
    • Organisms and Populations
    • Ecosystem
    • Biodiversity and Conservation
    • Environmental Issues
    • Relations and Functions
    • Inverse Trigonometric Functions
    • Matrices
    • Determinants
    • Continuity and Differentiability
    • Applications of Derivatives
    • Integrals
    • Applications of Integrals
    • Differential Equations
    • Vector Algebra
    • Three Dimensional Geometry
    • Linear Programming
    • Probability
    • Electric Charges and Fields
    • Electrostatic Potential and Capacitance
    • Current Electricity
    • Moving Charges and Magnetism
    • Magnetism and Matter
    • Electromagnetic Induction
    • Alternating Current
    • Electromagnetic Waves
    • Ray Optics and Optical Instruments
    • Wave Optics
    • Dual Nature of Radiation and Matter
    • Atoms
    • Nuclei
    • Semiconductor Electronics
    • Communication Systems
    • The Solid State
    • Solutions
    • Electrochemistry
    • Chemical Kinetics
    • Surface Chemistry
    • Isolation of Elements
    • The p-Block Elements.
    • The d-Block and f-Block Elements
    • Coordination Compounds
    • Haloalkanes and Haloarenes
    • Alcohols, Phenols and Ethers
    • Aldehydes, Ketones and Carboxylic Acids
    • Amines
    • Biomolecules
    • Polymers
    • Chemistry in Everyday Life
  • CBSE ›
  • Class 11 Science ›
  • Physics ›
  • Study Material ›
  • Chapter 14 Waves
  • Learn
  • Practice
  • Test
  • NCERT Solutions

Waves

Related Chapters
  • Units and Measurement FREE
  • Motion in a Straight Line
  • Motion in a Plane
  • Laws of Motion
  • Work, Energy and Power
  • System of Particles and Rotational Motion
  • Gravitation
  • Mechanical Properties of Solids
  • Mechanical Properties of Fluids
  • Thermal Properties of Matter
  • Thermodynamics
  • Kinetic Theory
  • Oscillations
  • Physical World

Self Study Courses

  • Class 6
    Science Mathematics History Civics Geography
    • Food: Where Does It Come From?
    • Components of Food
    • Fibre to Fabric
    • Sorting Materials into Groups
    • Separation of Substances
    • Changes Around Us
    • Getting to Know Plants
    • Body Movements
    • Living Organisms and Surroundings
    • Motion and Measurement of Distances
    • Light, Shadows and Reflections
    • Electricity and Circuits
    • Fun with Magnets
    • Water
    • Air Around Us
    • Garbage In, Garbage Out
    • Knowing Our Numbers
    • Whole Numbers
    • Playing With Numbers
    • Basic Geometrical Ideas
    • Understanding Elementary Shapes
    • Integers
    • Fractions
    • Decimals
    • Data Handling
    • Mensuration
    • Algebra
    • Ratio and Proportion
    • Symmetry
    • Practical Geometry
    • What, Where, How and When?
    • On the Trail of the Earliest People
    • From Gathering to Growing Food
    • In The Earliest Cities
    • What Books and Burials Tell Us
    • Kingdoms, Kings and an Early Republic
    • New Questions and Ideas
    • Ashoka, the Emperor Who Gave Up War
    • Vital Villages, Thriving Towns
    • Traders, Kings and Pilgrims
    • New Empires and Kingdoms
    • Buildings, Paintings and Books
    • Understanding Diversity
    • Diversity and Discrimination
    • What Is Government?
    • Key Elements of a Democratic Government
    • Panchayati Raj
    • Rural Administration
    • Urban Administration
    • Rural Livelihoods
    • Urban Livelihoods
    • The Earth in the Solar System
    • Globe: Latitudes and Longitudes
    • Motions of the Earth
    • Maps
    • Major Domains of the Earth
    • Major Landforms of the Earth
    • Our Country - India
    • India: Climate, Vegetation and Wildlife
  • Class 7
    Science Mathematics History Civics Geography
    • Nutrition in Plants
    • Nutrition in Animals
    • Fibre to Fabric
    • Heat
    • Acids, Bases and Salts
    • Physical and Chemical Changes
    • Weather, Climate and Adaptations of Animals to Climate
    • Winds, Storms and Cyclones
    • Soil
    • Respiration in Organisms
    • Transportation in Animals and Plants
    • Reproduction in Plants
    • Motion and Time
    • Electric Current and its Effects
    • Light
    • Water : A Precious Resource
    • Forests: Our Lifeline
    • Wastewater Story
    • Integers
    • Fractions and Decimals
    • Data Handling
    • Simple Equations
    • Lines and Angles
    • The Triangle and Its Properties
    • Congruence of Triangles
    • Comparing Quantities
    • Rational Numbers
    • Practical Geometry
    • Perimeter and Area
    • Algebraic Expressions
    • Exponents and Powers
    • Symmetry
    • Visualising Solid Shapes
    • Tracing Changes Through A Thousand Years
    • New Kings and Kingdoms
    • The Delhi Sultans
    • Tribes, Nomads and Settled Communities
    • The Mughal Empire
    • Devotional Paths to the Divine
    • Rulers and Buildings
    • The Making of Regional Cultures
    • Towns, Traders and Craftspersons
    • Eighteenth-Century Political Formations
    • On Equality
    • Role of the Government in Health
    • How the State Government Works
    • Growing Up As Boys and Girls
    • Women Change the World
    • Understanding Media
    • Understanding Advertising
    • Markets Around Us
    • A Shirt in the Market
    • Struggles for Equality
    • Environment
    • Inside Our Earth
    • Our Changing Earth
    • Air
    • Water
    • Natural Vegetation and Wildlife
    • Human Environment - Settlement, Transport and Communication
    • Human Environment Interactions: The Tropical and Subtropical Region
    • Life in the Temperate Grasslands
    • Life in the Deserts
  • Class 8
    Science Mathematics History Civics Geography
    • Crop Production and Management
    • Micro-Organisms : Friend Or Foe
    • Synthetic Fibres and Plastics
    • Materials: Metals and Non Metals
    • Coal and Petroleum
    • Combustion and Flame
    • Conservation of Plants and Animals
    • Cell - Structure and Functions
    • Reproduction in Animals
    • Reaching the Age of Adolescence
    • Force and Pressure
    • Friction
    • Sound
    • Chemical Effects of Electric Current
    • Some Natural Phenomena
    • Light
    • Stars and the Solar System
    • Pollution of Air and Water
    • Rational Numbers
    • Linear Equations in One Variable
    • Understanding Quadrilaterals
    • Practical Geometry
    • Data Handling
    • Squares and Square Roots
    • Cubes and Cube Roots
    • Comparing Quantities
    • Algebraic Expressions and Identities
    • Visualising Solid Shapes
    • Mensuration
    • Exponents and Powers
    • Direct and Inverse Proportions
    • Factorisation
    • Introduction to Graphs
    • Playing With Numbers
    • How, When and Where
    • From Trade to Territory: The Company Establishes Power
    • Ruling The Countryside
    • Tribals, Dikus and the Vision of a Golden Age
    • When People Rebel: 1857 and After
    • Colonialism and the City: The Story of an Imperial Capital
    • Weavers, Iron Smelters and Factory Owners
    • Civilising the Native, Educating the Nation
    • Women, Caste and Reform
    • The Changing World of Visual Arts
    • The Making of the National Movement: 1870s-1947
    • India after Independence
    • The Indian Constitution
    • Understanding Secularism
    • Why Do We Need A Parliament?
    • Understanding Laws
    • Judiciary
    • Understanding Our Criminal Justice System
    • Understanding Marginalisation
    • Confronting Marginalisation
    • Public Facilities
    • Law and Social Justice
    • Resources
    • Land, Soil, Water, Natural Vegetation and Wildlife Resources
    • Mineral and Power Resources
    • Agriculture
    • Industries
    • Human Resources
  • Class 9
    Physics Chemistry Biology Mathematics Geography Economics
    • Motion
    • Force and Laws of Motion
    • Gravitation
    • Work and Energy
    • Sound
    • Matter in Our Surroundings
    • Is Matter Around Us Pure?
    • Atoms and Molecules
    • Structure of the Atom
    • The Fundamental Unit of Life
    • Tissues
    • Diversity in Living Organisms
    • Why Do We Fall Ill?
    • Natural Resources
    • Improvement in Food Resources
    • Linear Equations in Two Variables
    • Quadrilaterals
    • Number System
    • Polynomials
    • Coordinate Geometry
    • Introduction to Euclid's Geometry
    • Lines and Angles
    • Triangles
    • Areas of Parallelograms and Triangles
    • Circles
    • Geometric Constructions
    • Heron's Formula
    • Surface Areas and Volumes
    • Statistics
    • Probability
    • India - Size and Location
    • Physical Features of India
    • Drainage of India
    • Climate of India
    • Natural Vegetation and Wildlife
    • Population
    • The Story of Village Palampur
    • People as Resource
    • Poverty as a Challenge
    • Food Security in India
  • Class 10
    Physics Chemistry Biology Mathematics History Civics Geography Economics
    • Electricity
    • Light - Reflection and Refraction
    • The Human Eye and The Colourful World
    • Magnetic Effects of Electric Current
    • Sources of Energy
    • Acids, Bases and Salts
    • Periodic Classification of Elements
    • Chemical Reactions and Equations
    • Metals and Non Metals
    • Carbon and Its Compounds
    • Life Processes
    • Control and Coordination
    • How Do Organisms Reproduce?
    • Heredity and Evolution
    • Environment
    • Management of Natural Resources
    • Real Numbers
    • Polynomials
    • Pair of Linear Equations in 2 Variables
    • Quadratic Equations
    • Arithmetic Progression
    • Triangles
    • Coordinate Geometry
    • Introduction to Trigonometry
    • Some Applications of Trigonometry
    • Circles
    • Constructions
    • Areas Related to Circles
    • Surface Areas and Volumes
    • Statistics
    • Probability
    • The Rise of Nationalism in Europe
    • The Nationalist Movement in Indo-China
    • Nationalism in India
    • The Making of a Global World
    • The Age of Industrialisation
    • Work, Life and Leisure: Cities in the Contemporary World
    • Print Culture and the Modern World
    • Novels, Society and History
    • Power Sharing
    • Federalism
    • Democracy and Diversity
    • Gender, Religion and Caste
    • Popular Struggles and Movements
    • Political Parties
    • Outcomes of Democracy
    • Challenges to Democracy
    • Resources and Development
    • Forest and Wildlife Resources
    • Water Resources
    • Agriculture
    • Minerals and Energy Resources
    • Manufacturing Industries
    • Lifelines of National Economy
    • Development
    • Sectors of the Indian Economy
    • Money and Credit
    • Globalisation and the Indian Economy
    • Consumer Rights
  • Class 11-commerce
    Accountancy Mathematics Economics Business Studies
    • Introduction to Accounting
    • Theory Base of Accounting
    • Recording of Transactions - I
    • Recording of Transactions - II
    • Bank Reconciliation Statement
    • Trial Balance and Rectification of Errors
    • Depreciation, Provisions and Reserves
    • Bills of Exchange
    • Questions & Answers
    • Sets
    • Relations and Functions
    • Trigonometric Functions
    • Principle of Mathematical Induction
    • Complex Numbers and Quadratic Equations
    • Linear Inequalities
    • Permutations and Combinations
    • Binomial Theorem
    • Sequences and Series
    • Straight Lines
    • Conic Sections
    • Introduction to Three Dimensional Geometry
    • Limits and Derivatives
    • Mathematical Reasoning
    • Probability
    • Statistics
    • Indian Economy on the Eve of Independence
    • Indian Economy 1950-1990
    • Liberalisation, Privatisation and Globalisation: An Appraisal
    • Poverty
    • Human Capital Formation in India
    • Rural Development
    • Employment: Growth, Informalisation and Other Issues
    • Infrastructure
    • Environment and Susutainable Development
    • Comparative Development Experiences of India and its Neighbours
    • Nature and Purpose of Business
    • Forms of Business Organisation
    • Private, Public and Global Enterprises
    • Business Services
    • Emerging Modes of Business
    • Social Responsibility of Business and Business Ethics
    • Formation of a Company
    • Sources of Business Finance
    • Small Business
    • Internal Trade
    • International Business - I
    • International Business - II
  • Class 11-science
    Chemistry Biology Mathematics Physics
    • Some Basic Concepts of Chemistry
    • Structure of Atom
    • Classification of Elements and Periodicity in Properties
    • Chemical Bonding and Molecular Structure
    • States of Matter
    • Thermodynamics
    • Equilibrium
    • Redox Reactions
    • Hydrogen
    • The s-Block Elements
    • The p-Block Elements.
    • Organic Chemistry
    • Hydrocarbons
    • Environmental Chemistry
    • Human Physiology
    • The Living World
    • Biological Classification
    • Plant Kingdom
    • Animal Kingdom
    • Morphology of Flowering Plants
    • Anatomy of Flowering Plants
    • Structural Organisation in Animals
    • Cell : The Unit of Life
    • Biomolecules
    • Cell Cycle and Cell Division
    • Transport in Plants
    • Mineral Nutrition
    • Photosynthesis in Higher Plants
    • Respiration in Plants
    • Plant Growth and Development
    • Digestion and Absorption
    • Breathing and Exchange of Gases
    • Body Fluids and Circulation
    • Excretory Products and their Elimination
    • Locomotion and Movement
    • Neural Control and Coordination
    • Chemical Coordination and Integration
    • Sets
    • Relations and Functions
    • Trigonometric Functions
    • Principle of Mathematical Induction
    • Complex Numbers and Quadratic Equations
    • Linear Inequalities
    • Permutations and Combinations
    • Binomial Theorem
    • Sequences and Series
    • Straight Lines
    • Conic Sections
    • Introduction to Three Dimensional Geometry
    • Limits and Derivatives
    • Mathematical Reasoning
    • Probability
    • Statistics
    • Units and Measurement FREE
    • Motion in a Straight Line
    • Motion in a Plane
    • Laws of Motion
    • Work, Energy and Power
    • System of Particles and Rotational Motion
    • Gravitation
    • Mechanical Properties of Solids
    • Mechanical Properties of Fluids
    • Thermal Properties of Matter
    • Thermodynamics
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