NCERT Solutions Class 11 Physics

Physics is frequently rated as one of the most difficult subjects by students. However, if approached correctly, it may quickly become one of the most simple and fun subjects. Physics can not only improve your grades, but it can also spark a lifelong interest in science. As a result, when studying a conceptual subject such as physics, it is critical that the student take the proper approach. To assist you with this procedure, we have provided NCERT Solutions for Class 11 Physics.

In class 11, students are introduced to several fundamental physics ideas and laws. We will go through important topics like units of measurement, motion in a plane and straight line, gravitational force, kinetic energy, and so on.

NCERT Solutions Class 11 Physics for Download

Physics is a discipline that is filled with concepts and numerical issues. To solve the questions effortlessly, a full comprehension of the ideas is required. Extramarks looks to supply students with reliable information that is totally based on the CBSE board’s most recent syllabus. By following the links provided below, you may access NCERT Physics Class 11 for all chapters. Subject matter specialists with years of expertise explain each and every minute idea in the most straightforward manner possible, allowing students to approach the exam with confidence.

NCERT Class 11 Physics Chapter wise Solutions 

On this page, we will provide links to Class 11 Physics chapter-by-chapter solutions so that you can download them as needed. You can easily download them and refer to them as needed while studying. Continue reading to learn more about and get your Class 11 Physics Solutions.

NCERT Physics Class 11 Solutions

NCERT 11 Physics Solutions provide answers to every chapter end practise questions. When appropriate, diagrams are used to help students grasp the solutions. The solutions also offer some preparatory advice on how to use the solutions, which will help students pass the Class 11 exam with flying colours.

NCERT Solutions for Class 11 Physics Chapter 1 Physical World – Term I

Physical World is an introductory chapter that explains what Physics is and how it tries to explain various physical occurrences using a few concepts and laws.The chapter next discusses the main divisions of Physics – Classical Physics and Quantum Physics – and what they are all about. You’ll learn about the relationship between physics, technology, and society as well.

Topics Covered in Class 11 Physics Chapter 1 Physical World for First Term:

Physics-scope and excitement; nature of physical laws; Physics, technology and society. (To be discussed as a part of Introduction and integrated with other topics)

NCERT Solutions for Class 11 Physics Chapter 2 Units and Measurement – Term I 

This chapter will teach you how to measure various physical quantities. A basic, internationally acknowledged reference standard has been adopted in order to quantify physical quantities. This is referred to as a unit. The physical quantity is compared to this unit during measurement. There are two types of units: fundamental and derived (which can be expressed as a combination of the fundamental units).

Topics Covered in Class 11 Physics Chapter 2 Units and Measurements for First Term:

Need for measurement: Units of measurement; systems of units; SI units, fundamental and derived units. Length, mass and time measurements; accuracy and precision of measuring instruments; errors in measurement; significant figures.

Dimensions of physical quantities, dimensional analysis and its applications.

NCERT Solutions for Class 11 Physics Chapter 3 Motion in a Straight Line – Term I

This chapter begins by describing motion, which is defined as the change in position of an object over time, before going on to discuss motion in a straight line. This is referred to as rectilinear motion. Graphs and equations are used to explain many terminology connected to Rectilinear Motion, such as location, path length, displacement, average and instantaneous velocity and speed, and acceleration. You’ll also learn about kinematic equations and relative velocity for uniformly accelerated motion.

Topics Covered in Class 11 Physics Chapter 3 Motion in a Straight Line  for First Term:

Elementary concepts of differentiation and integration for describing motion, uniform and non-uniform motion, average speed and instantaneous velocity, uniformly accelerated motion, velocity – time and position-time graphs.

Relations for uniformly accelerated motion (graphical treatment).

NCERT Solutions for Class 11 Physics Chapter 4 Motion in a Plane – Term I

You will learn about the motion of an object in a plane, or in two dimensions, and how to quantify it in this chapter. To begin, you’ll learn about scalars (quantities with only one magnitude) and vectors (quantities that have both magnitude and directions). You’ll learn how to multiply vectors by real values, as well as how to add and subtract vectors using graphical approaches. The resolution of vectors and the analytical approach of vectors addition will come after that.

Topics Covered in Class 11 Physics Chapter 4 Motion in a Plane  for First Term:

Scalar and vector quantities; position and displacement vectors, general vectors and their notations; equality of vectors, multiplication of vectors by a real number; addition and subtraction of vectors, relative velocity, Unit vector; resolution of a vector in a plane, rectangular components, Scalar and Vector product of vectors.

Motion in a plane, cases of uniform velocity and uniform acceleration-projectile motion, uniform circular motion.

NCERT Solutions for Class 11 Physics Chapter 5 Law of Motion – Term I

This chapter discusses how motion is caused. The law of inertia will be discussed, followed by Newton’s first, second, and third laws of motion. Students will gain a thorough understanding of how objects move, what force is, the direction, resultant motion, and the influence of gravitation. All of this will be done by using specific examples. The chapter also defines momentum and the conservation of momentum, before moving on to the idea of equilibrium, which occurs when the net force acting on a body is zero. Students will be able to succeed in their higher education levels if they have a thorough understanding of these ideas.

Topics Covered in Class 11 Physics Chapter 5 Laws of Motion  for First Term:

Intuitive concept of force, Inertia, Newton’s first law of motion; momentum and Newton’s second law of motion; impulse; Newton’s third law of motion. (Recapitulation only)

Law of conservation of linear momentum and its applications.

Equilibrium of concurrent forces, Static and kinetic friction, laws of friction, rolling friction, lubrication.

Dynamics of uniform circular motion: Centripetal force, examples of circular motion (vehicle on a level circular road, vehicle on a banked road).

NCERT Solutions for Class 11 Physics Chapter 6 Work, Energy and Power – Term I

From a scientific standpoint, you will study  work, power, and energy, three often used terminology, as well as the link between these three physical variables, in this chapter. You’ll receive a clear description of work using the Work-Energy Theorem, which is derived from equations studied in prior chapters. The two types of energy, kinetic and potential, will be discussed. Problems involving determining energy and power are solved in a step-by-step way based on the CBSE board’s mark weightage. Students will learn the chapter with ease if they practise these principles on a regular basis.

Topics Covered in Class 11 Physics Chapter 6 Work, Energy and Power  for First Term:

Work done by a constant force and a variable force; kinetic energy, work-energy theorem, power.

Notion of potential energy, potential energy of a spring, conservative forces: conservation of mechanical energy (kinetic and potential energies); non-conservative forces: motion in a vertical circle; elastic and inelastic collisions in one and two dimensions.

NCERT Solutions for Class 11 Physics Chapter 7 Systems of Particles and Rotational Motion – Term I

This chapter discusses the theoretical and mathematical elements of extended body motion. The linear momentum of a system of particles, the vector product of two vectors, angular velocity and its relation to linear velocity, torque and angular momentum, the equilibrium of a rigid body, moment of inertia, and theorems of perpendicular and parallel axes are all explained in detail with examples, diagrams, and graphs. Because this chapter covers so many subjects, students are strongly advised to use excellent study materials when solving the textbook’s exercise questions.

Topics Covered in Class 11 Physics Chapter 7 System of Particles and Rotational Motion  for First Term:

Centre of mass of a two-particle system, momentum conservation and centre of mass motion.

Centre of mass of a rigid body; centre of mass of a uniform rod.

Moment of a force, torque, angular momentum, law of conservation of angular momentum and its applications.

Equilibrium of rigid bodies, rigid body rotation and equations of rotational motion, comparison of linear and rotational motions.

Moment of inertia, radius of gyration, values of moments of inertia for simple geometrical objects (no derivation). 

NCERT Solutions for Class 11 Physics Chapter 8 Gravitation – Term I

All items fall toward the earth due to gravity, as we all know. This chapter will provide you with a thorough understanding of the gravitational force and its different principles. You’ll begin with Kepler’s laws, then move on to the universal law of gravitation, the gravitational constant, the earth’s acceleration due to gravity, acceleration due to gravity below and above the earth’s surface, and gravitational potential energy.

Topics Covered in Class 11 Physics Chapter 8 Gravitation  for First Term:

Universal law of gravitation. Acceleration due to gravity (recapitulation only) and its variation with altitude and depth.

Gravitational potential energy and gravitational potential, escape velocity, orbital velocity of a satellite, Geo-stationary satellites.

NCERT Solutions for Class 11 Physics Chapter 9 Mechanical Properties of Solids – Term II

You’ve learnt that a body’s motion is determined by how mass is distributed within it. However, your comprehension was limited to a simpler case of rigid bodies — you studied rigid body motion in which the hard solid body has a definite shape and size. In actual life, however, even a rod of iron can be bent, stressed, or compressed – it can be bent, stressed, or crushed. As a result, you will study the mechanical properties of solid things in this chapter. Problems based on these ideas arise in exams for higher marks, thus practising them on a daily basis is vital. Students will also learn about the stress-strain graph, which is critical for the exam.

Topics Covered in Class 11 Physics Chapter 9 Mechanical Properties of Solids  for Second Term:

Stress-strain relationship, Hooke’s law, Young’s modulus, bulk modulus

NCERT Solutions for Class 11 Physics Chapter 10 Mechanical Properties of Fluids – Term II

Because they can flow, liquids and gases are termed fluids. Some basic physical features of fluids will be covered in this chapter. The chapter also discusses the differences between fluids and solids, as well as the parallels and differences between liquids and gases, among other topics. The chapter begins with a discussion of pressure before moving on to other topics such as streamline flow, Bernoulli’s principle, viscosity, and surface tension. Diagrams, equations, and numerical problems are used to teach all of these ideas in depth.

Topics Covered in Class 11 Physics Chapter 10 Mechanical Properties of Fluids for Second Term:

Pressure due to a fluid column; Pascal’s law and its applications (hydraulic lift and hydraulic brakes), effect of gravity on fluid pressure.

Viscosity, Stokes’ law, terminal velocity, streamline and turbulent flow, critical velocity, Bernoulli’s theorem and its applications.

Surface energy and surface tension, angle of contact, excess of pressure across a curved surface, application of surface tension ideas to drops, bubbles and capillary rise.

NCERT Solutions for Class 11 Physics Chapter 11 Thermal Properties of Matter – Term II

In our everyday lives, we all use the phrases “hot” and “temperature.” This chapter explains these two words in a thorough and scientific manner. The chapter begins by explaining what heat and temperature are and how they are measured. The ideal gas equation and the concept of absolute temperature are next introduced. The thermal expansion of matter — how solids, liquids, and gases expand as the temperature rises – will be covered next.

Heat, temperature, (recapitulation only) thermal expansion; thermal expansion of solids, liquids and gases, anomalous expansion of water; specific heat capacity; Cp, Cv – calorimetry; change of state – latent heat capacity.

Heat transfer-conduction, convection and radiation (recapitulation only), thermal conductivity, qualitative ideas of Blackbody radiation, Wein’s displacement Law, Stefan’s law, Greenhouse effect.

NCERT Solutions for Class 11 Physics Chapter 12 Thermodynamics – Term II

You will learn about the rules that control thermal energy in this chapter, as well as the mechanisms that convert work into heat and vice versa. The concept of thermal equilibrium is introduced first, followed by the Zeroth law of Thermodynamics. Thermodynamics will then teach you how heat and work aid in energy transmission to a system, resulting in a change in its internal energy.

Topics Covered in Class 11 Physics Chapter 12 Thermodynamics for Second Term:

Thermal equilibrium and definition of temperature (zeroth law of thermodynamics), heat, work and internal energy. The first law of thermodynamics, isothermal and adiabatic processes.The second law of thermodynamics: reversible and irreversible processes.

NCERT Solutions for Class 11 Physics Chapter 13 Kinetic Theory – Term II

This chapter begins by addressing the molecular nature of matter and the behaviour of gases. The kinetic theory of an ideal gas, as well as the law of energy equipartition, will be studied after that. The specific heat capacities of monatomic gases, diatomic gases, polyatomic gases, solids, and water will be discussed after that. Finally, you’ll discover what the mean free path is.

Topics Covered in Class 11 Physics Chapter 13 Kinetic Theory for Second Term:

Equation of state of a perfect gas, work done in compressing a gas. Kinetic theory of gases – assumptions, the concept of pressure. Kinetic interpretation of temperature; rms speed of gas molecules; degrees of freedom; the law of equipartition of energy (statement only) and application to specific heat capacities of gases; the concept of mean free path, Avogadro’s number.

NCERT Solutions for Class 11 Physics Chapter 14 Oscillations – Term II 

In this chapter, you’ll study about oscillations, also known as oscillatory motion, which is the to and fro motion of an object around a fixed point (Ex: the motion of a pendulum). This idea, sometimes known as vibrations, is crucial for comprehending a variety of physical processes. Students must use appropriate study resources to learn these ideas effectively. They will be better prepared to face more difficult questions in the exam if they memorise the chapter on a daily basis.

Topics Covered in Class 11 Physics Chapter 14 Oscillations for Second Term:

Periodic motion – time period, frequency, displacement as a function of time, periodic functions. Simple harmonic motion (S.H.M) and its equation; phase; oscillations of a loaded spring- restoring force and force constant; energy in S.H.M. Kinetic and potential energies; simple pendulum derivation of expression for its time period. Free, forced and damped oscillations (qualitative ideas only), resonance.

NCERT Solutions for Class 11 Physics Chapter 15 Waves – Term II

The oscillatory motion of a system or a collection of items, such as a material medium, will be studied here. You’ll learn about waves, which are patterns that travel without transferring stuff in its whole. You’ll learn about transverse and longitudinal waves, progressive wave displacement relationships, and travelling wave speed. The principles of wave superposition and reflection will be discussed as well. Important formulas and concepts are emphasised in the solutions to help students remember what they’ve learned.

Topics Covered in Class 11 Physics Chapter 15 Waves for Second Term:

Wave motion: Transverse and longitudinal waves, speed of travelling wave, displacement relation for a progressive wave, principle of superposition of waves, reflection of waves, standing waves in strings and organ pipes, Beats.

Important Theories and Topics in Physics Class 11

Students can make note of these important theories and topics for CBSE Class 11 Physics and prepare revision notes by referring to the NCERT Solutions.

• Classical Mechanics studies particles and their motion. It investigates how fast they travel. Their speed is substantially slower than that of light.
• Kinetic Theory is a theory that analyses and describes how gases behave. It is considered that gas is made up of swiftly moving atoms. The hypothesis explains the random movement of particles caused by the presence of significant intermolecular space.
• The Relative Theory, proposed by Albert Einstein, describes how all moving objects are related to one another. It discusses the motion of particles travelling at a speed close to that of light.
• Thermodynamics is the science of heat, temperature, and the conversion of heat into work.

Chapter-Wise Tips:

The first chapter is a simple one. Take your time with it and go over it thoroughly before the exam.

Measurement, error evaluation, and SI units are all covered in Chapter 2. From the standpoint of numerical and short-answer questions, all of these topics are incredibly significant. Make sure you’ve learned and understood all of the concepts and formulas, and that you’ve had plenty of practice with the questions and approaches. In the exam, you may also be asked about the dimensions of other quantities. Only a few questions from this chapter may appear in the exam, thus rigorous preparation is essential to achieving full marks.

Chapter 3 contains a graphical representation of motion, and questions about it can be asked. Make sure you’re familiar with all of the graphical representations.  The exam usually requires numericals from theories and topics like average velocity and speed, relative velocity, instantaneous velocity, and kinematic equations.Make sure you’ve had plenty of practice with these numerical questions and that you’ve gone over all of the formulas and equations.

Chapter 4 is crucial, and the principles covered here will be tested on the exam and will be applied in subsequent chapters. A strong understanding of vectors and all of the principles is necessary. For solving equations and numerical problems, the chapters on resolving vectors and projectile motion are also essential. This chapter requires you to practise vector addition, multiplication, differentiation, and integration. Almost all of the problems in this chapter employ these formulas. Make sure you’ve had plenty of practice and have a firm grasp on all of the formulas. Students can use the Physics 11 NCERT books and solutions to have a thorough understanding of how to solve numerical questions.

Chapter 5 is one of the most crucial chapters in the book. Students should be well-versed in Newton’s three laws. They should also practise as many numerical problems relating to momentum conversion as possible, as they will be questioned about them repeatedly in the exam. There are also questions about issues like friction and force. It is possible to ask students to solve and equalise them.

Chapter 6 focuses on the derivation of all laws and theorems. For full marks, students must have sufficient practice and know how to describe it step-by-step in a comprehensible manner. This chapter emphasises kinetic and potential energy. These topics ask for numerical answers. Derivation of Spring Potential Energy is particularly vital for students to understand because it may be questioned directly in the exam. It’s also a good idea to practise interpreting a potential energy curve. Students should attempt as many numerical and conversion questions as possible from these areas.

Chapter 7 covers all the vital topics such as the theorems, linear motion, kinematics and dynamics of rotational motion, rolling motion, inertia, torque and angular momentum, angular velocity and angular acceleration are all vital topics covered in Chapter 7. All students should concentrate on these topics and ensure that they understand them. Each of these topics’ numerical questions should be carefully practised as well.

Chapter 8 discusses Kepler’s Law in depth. You can directly question the law’s derivation. Students should figure out how to calculate gravity’s acceleration above and below the surface. Numericals  from Newton’s law of gravitation, as well as acceleration due to gravity, are topics where students should focus. Satellite escape speed and time period are also important topics to investigate numerically. Students should be familiar with all of the formulas and have sufficient numerical practice.

In Chapter 9, students should review all of the Mechanical Properties of Solids thoroughly.

Chapter 10 discusses Bernoulli’s Principle. In the exam, it can be used to ask both short answers and numerical questions. Venturi-metre and hydraulic lift can also be asked as application-based numerical questions.

All of the subjects covered in Chapter 11 are extremely significant, including the Ideal Gas Equation, Thermal Expansion, Specific Heat Capacity, Calorimetry, Latent Heat, Heat Transfer, and Newton’s Law of Cooling.Numerical and theoretical practise should be done and students should have a thorough understanding of all ideas. Calorimetry can feature numerical questions that require a lot of computations, so make sure you practise them enough.

The most significant chapter is Chapter 12, Thermodynamics. All of the laws and concepts can be directly challenged and quantified. While studying for the exam, students should answer as many questions as possible. All of the concepts and theories discussed in this chapter must be well understood. They should be thoroughly investigated by students. The interpretation of the Carnot Cycle should also be understood by students. It’s necessary when working with numbers and addressing challenges.

Focus on Kinetic Theory in Chapter 13 and make sure you grasp the material. It’s crucial to understand the Law of Equi-partition of Energy.

Questions about numerics and derivation can be found in Chapter 14 of SHM. Students should be well-versed in the topics and have enough practice with numbers. Simple Pendulum and Oscillations are equally important topics. All of the formulas should be memorised by the students. It’s possible that you’ll be asked for numbers.

In Chapter 15, students need to focus on Longitudinal Waves, their features, displacement relation, Principle of Superposition, Standing Waves, and Doppler’s effects in the field of waves. Derivation and numerical calculations for all these topics are important, so is the derivation of the nodes and antinodes from standing waves. In some cases, derivation of the Dooper’s effect is required to solve an issue. All of the concepts should be understood and practised by the pupils.

Features of Extramarks NCERT Solutions for Class 11 Physics

• Senior faculty members prepare the subject matter, so students can get solutions and experience all on one plate
• The language is simple and straightforward
• Answers in the Class 11 Physics Solutions are simple and exact
• A step-by-step procedure is followed in the solutions
• Solutions are provided at the chapter and topic levels to ensure that students have a thorough understanding of the material
• The syllabus covers the whole course, so students can access all the relevant material in one go. Students can consult the solutions offered here if they have any questions while practising. It will also aid in a quick review of the complete curriculum

CBSE Marking Scheme 2022-23

The CBSE Board has divided the academic syllabus equally into two terms. Students can find the split syllabus for Term I along with the marks assigned to each topic. 

Term I CBSE Class 11 Physics Syllabus Course Structure 2022-2023

At the beginning of Term II, students can refer to the marks distribution and begin planning their study schedule. 

Term II CBSE Class 11 Physics Syllabus Course Structure 2022-2023

Why Extramarks?

Extramarks combines the benefits of The Learning App with Live Classes to provide you with a seamless and comprehensive learning experience. The NCERT Solutions Class 11 also includes questions from prior years’ sample papers and question papers. This allows students to get a sense of the types of questions they might expect on the exam. By attempting to answer these questions, they will gain a better understanding of how to write the responses. They can use the answers to these questions to evaluate and improve their own answers.

How to Use the NCERT Book While Preparing for Exams?

For students in Class 11 and 12, the NCERT textbook is the most important book. The majority of questions in board and school exams are taken from the NCERT textbook or are based on the same type of question pattern. Students should be thorough with all of the questions provided at the end of each chapter, as well as any additional questions or examples provided within the chapters. If you are thorough with these questions, it will be easy for you to attempt other questions of this type and variations on them. Practising NCERT questions will help you get good grades. You can refer to the NCERT Solutions and properly practise all of the diagrams,  numerical problems and examples from the book. 

Important Tips for the Exam:

• Students should always have a schedule. The timeline will assist students in keeping track of their syllabus as well as determining how much time they will need for each course or topic. A timeline will also assist them in keeping track of the chapters they cover and ensure that no topic is missed
• Make sure to take regular pauses and time to rejuvenate yourself. This can also help you study better when you return from your break. Always begin a new topic fresh, as this will help you retain more information. Have a restful sleep before the exam to be at your best
• Make subject and chapter summaries using the Class 11 Physics Solutions– This will allow you to better revise for the exam. It will highlight key points from the chapters and present them in a succinct manner
• Examine sample papers and papers from past years. This will help you understand the types of questions that may be asked in the exam and how you should respond to them. Always keep track of your progress while tackling the sample paper; this will help you manage your time effectively. After each attempt, evaluate yourself to determine how you might improve your performance and which topics require additional practise
• Prepare your bag and any other exam-related items the day before the exam. Make sure to reach the centre at least 10-15 minutes before exam starts to keep your cool and focus
• Make sure to answer all of the questions on your exam. Start with the questions you’re confident about. Spend no time on any questions about which you are unsure. Make a point of emphasising formulas, key words, and lines in your responses. A well-presented paper is usually preferable and offers you an advantage. Try all of the questions in the order they appear on the question paper and in the sections they belong to
• After completing the paper, allow yourself adequate time to edit your answers. Make good use of your time and allow for some time for review. This is critical for numerical calculations . Revising your answers can assist you in identifying and correcting any errors that you may have made