NCERT Solutions for Class 11 Physics

Physics is one such subject that can help students comprehending and understanding the concepts and basics of the subject. The team at Physics Wallah comes like a bridge to students looking forward to clearing their concepts. In general, physics is one such subject that requires dedicated attention in order to conquest its critical concepts. The NCERT Solutions for class 11 physics are like assistance to students for understanding their concepts.

The complete set of NCERT Solutions for Class 11 Physics has been bifurcated into various segments. Students can find a step-by-step guide to solve each and every question. The complete study material has been ensured after regular checks through our experts. Students can also find some short columns in NCERT solutions for class 11 physics written down by our experts.

NCERT Solutions for Class 11 Physics Chapters (Updated 2022-23)

NCERT Solutions for Class 11 Physics Free PDF Download

NCERT solutions for class 11 Physics

Chapter- 1 Physical World

This chapter will study how things work and the reasons behind it. You will become more aware of the things around you, the origins and history of science. This chapter will also come across various aphorisms and their justification using real-life physics concepts. The topics involved here are – gravitational force, electromagnetic force, and strong and weak nuclear force. The theories and observations of various scientists and their conclusions are briefly presented here. You will get a better idea of ​​the factors that are the reason for the development of science and technology in our country. The existence of the electron is explained in detail in this chapter to familiarize students with basic conceptual knowledge.

Chapter- 2 Units and Measurements

Scientists gather information and observations using senses like ears, eyes, etc. A few of them are like determining color and texture, while others would be difficult where measurement is necessary. It is a fundamental concept in science without which scientists cannot conduct any experiments. Students will get to know the units of physical quantities and the method of their evaluation. It will also give a good idea of ​​the errors that would occur when measuring things and significant numbers. Topics covered in this chapter are- 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.

Chapter- 3 Motion in a Straight Line

This chapter will cover basic topics such as comparing objects as point objects and how to plot graphs and find values ​​based on them. Plotting an x-t motion graph can be easily learned with NCERT solutions from Physics Wallah. The time taken by a cyclist, the speed of a car, and the time taken by a bus can easily be found by referring to these solutions. Students will learn the difference between the magnitude of displacement and the total distance traveled. They will also study average speed, instantaneous speed, and speed as per CBSE guidelines. Topics covered in this chapter are- Frame of reference. Motion in a straight line: Position-time graph, speed, and velocity. 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). The elementary concepts of integration and differentiation for describing motion.

Chapter- 4 Motion in a Plane

Students will discuss scalar and vector quantities and their difference. It also explains how to perform algebraic expressions on various scalar quantities. True or false questions based on these terms and their justification are also elaborated under each answer. We will also learn the concept of the magnitude of vectors and their collinearity, the magnitude of the displacement vector, and the different types of displacement of a moving vehicle. It will help us understand the time taken by a person to cross a river, the experience of riding a bike in the rain, and the ball thrown by a cricketer on the ground. Topics covered in this chapter are- Scalar and vector quantities: Position and displacement vectors, general vectors and notation, equality of vectors, multiplication of vectors by a real number, addition, and subtraction of vectors. Relative velocity. Unit vectors. A resolution of a vector in a plane – rectangular components. Motion in a plane. Cases of uniform velocity and uniform acceleration – projectile motion. Uniform circular motion.

Chapter- 5 Laws of Motion

This chapter is very important in mechanics. In the exam, problems based on the conservation of momentum are often asked. By going through this chapter, students become well versed in the laws of motion and their applications in our daily activities. In this chapter, numerical problems based on mechanics are solved clearly to improve the students' exam preparation. With a good knowledge of these concepts, students can pursue well at their undergraduate level. Topics covered in this chapter are- 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. 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 level circular road, vehicle on banked road).

Chapter- 6 Work, Energy, and Power

The theorem of work energy is an important concept in this chapter. Students are strongly encouraged to learn this chapter effectively, as it will continue in future classes. A work done by a person and the energy required to do this work is briefly explained with suitable examples to familiarize students with the concepts. Energy and power determination problems are solved sequentially based on the weightage of marks allotted by CBSE boards. Practicing these concepts regularly will help them to score in the board exam. Topics covered in this chapter are- Scalar products of vectors. The work done by a variable and constant force; work-energy theorem, kinetic energy, power. The motion of potential energy, conservative forces, the potential energy of a spring; non-conservative forces; conservation of mechanical energy (kinetic and potential energies); elastic and inelastic collisions in one and two dimensions.

Chapter- 7 System of Particles and Rotational Motion

This chapter will discuss the motion of extended bodies, such as a system of particles. The center of gravity of a system of particles is the main concept in this chapter. The concept of movement and its uses is briefly explained per the CBSE board syllabus. Since this chapter contains many concepts, students are strongly advised to use the perfect study material while answering the textbook problems. Topics covered in this chapter are- Centre of mass of a two-particle system, momentum conservation, and center of mass motion. Centre of mass of circular ring, the centre of mass of a rigid body, disc, rod, and sphere. Vector product of vectors; a moment of a force, torque, angular momentum, conservation of angular momentum, some examples. Equilibrium of rigid bodies, rigid body rotation, and equation of rotational motion, comparison of linear and rotational motions; the radius of gyration, a moment of inertia. M.I.  values for simple geometrical objects. Statement of perpendicular and parallel axes theorems and their applications.

Chapter- 8 Gravitation

We know that all material objects are attracted to the Earth. Things we throw up fall. Climbing a hill is difficult compared to going downhill. Gravity is a very popular concept because most of what we will study in the future is consistent with this phenomenon. To understand the more complex ideas in this chapter, students should know the difference between gravitation and gravity. Topics discussed in this chapter are – Universal law of gravitation and Kepler’s laws of planetary motion. An acceleration is due to gravity and its variation with altitude and depth. Gravitational potential energy; gravitational potential. Escape speed, orbital velocity of a satellite. Geostationary satellites.

Chapter- 9 Mechanical Properties of Solids

A solid body has a certain shape and size, but in reality, it is bent, stretched, and compressed. To recognize the shape of a body, force is necessary. The important concepts covered in this chapter are plasticity and elasticity. Students will learn about solids' mechanical properties, Young's copper and steel modulus, and yield strength. Problems based on this chapter appear in multi-mark exams, so it is necessary to practice them daily. Students will also be introduced to the stress-strain relationship graph, which is very important for the exam.

Chapter- 10 Mechanical Properties of Fluids

Here we will discuss the physical properties of liquids and gases. They are called fluids because they can flow. This is an important property that separates solids from liquids and gases. Other important concepts covered here are Bernoulli's principle, Reynolds number, surface tension, flow, viscosity. The simple property of a fluid is that it can flow. It has no resistance to change its shape. Students will get a clear concept of ​​the mechanical properties of liquids, which have more mark weightage in the board exam.

Chapter- 11 Thermal Properties of Matter

We all know heat and temperature. The method used to determine the temperature is described in this chapter. Students will also get a clear idea of Newton's law of cooling, an important concept for various competitive exams. Temperature is the heat of a body, which can be measured with a thermometer. The various thermal properties of matter are listed in the sequence in this chapter to ensure students are more confident in these concepts. Topics covered in this chapter are- Heat, temperature, thermal expansion, specific heat capacity – calorimetry, change of state – latent heat: heat transfer – conduction, convection and radiation, thermal conductivity, and Newton's law of cooling.

Chapter- 12 Thermodynamics

Thermodynamics is the concept of heat and temperature and their transformation into other forms of energy. It is one of the important topics for question makers and most of the exam questions are asked from this chapter. For students to achieve remarkable grades, it is crucial that they learn all these concepts effectively. Laws of thermodynamics, specific heat capacity, various thermodynamic processes and Carnot engine are some of the important concepts covered in this chapter.

Chapter- 13 Kinetic Theory

This chapter is a scoring section when it comes to exam preparation. In addition to the properties of solids and liquids, the properties of gases are easy to understand. In this chapter, students will discuss concepts such as the molecular nature of matter, the behavior of gases, the kinetic theory of an ideal gas, the law of energy equipartition, specific heat capacity, and mean free path. The problems are also solved systematically as per the CBSE guidelines, so scoring good marks would be an easy task for the 11th class students. Topics covered in this chapter are- Equation of the state of perfect gas and work on compressing a gas. Kinetic theory of gases: Assumptions, the concept of pressure. Kinetic energy and 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 the mean free path, Avogadro’s number.

Chapter- 14 Oscillations

Oscillation is a fundamental concept in physics. Students need to learn the concepts from this chapter as it will continue in the following classes. The concepts explained in this chapter are- Periodic motion – frequency, period, and displacement as a function of time. Simple harmonic motion (SHM) and periodic functions and its equation; phase; oscillations of a spring – force constant and restoring force; energy in SHM –potential and kinetic energies; simple pendulum – derivation of expression for its time period; forced, free and damped oscillations (qualitative ideas only), resonance. By studying the chapter daily, students will be able to face more difficult questions that would appear in the exam.

Chapter- 15 Waves

This chapter consist of  comprehensive questions on important concepts like wave dynamics etc. The questions in this chapter will help you with concepts like types of waves, speed of sound in air, the tension on strings, and dependence on the speed of sound in air. Important formulas and concepts are mentioned in the solutions to make it easier for students to review the concepts. Various wave characteristics such as amplitude, frequency, phase, wavelength, wave displacement, and resonance are described in this chapter.

CBSE Marking Scheme 2022-23

The CBSE board has divided academic sessions covering the entire syllabus to help students learn the concepts effectively. A systematic approach based on the topics and ideas of experts is followed. The CBSE board will conduct the examinations at the end of the academic year as per the syllabus.

Unit No. Name of Unit Marks
Unit–I Physical World and Measurement 23
  Chapter–2: Units and Measurements
Unit-II Kinematics
  Chapter–3: Motion in a Straight Line
  Chapter–4: Motion in a Plane
Unit–III Laws of Motion
  Chapter–5: Laws of Motion
Unit–IV Work, Energy and Power 17
  Chapter–6: Work, Energy and Power
Unit–V Motion of System of Particles and Rigid Body
  Chapter–7: System of Particles and Rotational Motion
Unit-VI Gravitation
  Chapter–8: Gravitation
Unit–VII Properties of Bulk Matter 20
  Chapter–9: Mechanical Properties of Solids
  Chapter–10: Mechanical Properties of Fluids
  Chapter–11: Thermal Properties of Matter
Unit–VIII Thermodynamics
  Chapter–12: Thermodynamics
Unit–IX Behaviour of Perfect Gases and Kinetic Theory of Gases
  Chapter–13: Kinetic Theory
Unit–X Oscillations and Waves 10
  Chapter–14: Oscillations
Total 70

Why NCERT Solutions for Class 11 Physics are important?

Special tips and tricks are also provided in solutions offered by Physics Wallah. The complete set has been prepared by experts with years of experience in clearing doubts of students. Since syllabus to class 11th physics can be tricky to some extent and wide. To resolve this issue, NCERT solutions for class 11 physics comprise of concise and only important aspects related to the subject material.

In order to grow academically, it is crucial for students to strengthen their concepts. Students can easily resolve their doubts and queries through NCERT solutions for class 11 physics provided by NCERT. The most prominent benefit of this NCERT Solution is them being accurate.

Students can easily do their homework, with our stagnating at any spot. These NCERT solutions for class 11 physics boost a significant amount of morale among students and perform better among all the students. It is already known how important class 11th all about.

These NCERT solutions for class 11 physics are prepared considering the latest syllabus. Competitive exams are part of a student’s life. These solutions become a foundation step to score topmost marks in competitive exams. Any national level competitive exams can be aced by this solution.

How to Study NCERT Solutions for Class 11 physics effectively?

The faculties drafting solutions at Physics Wallah have already topped various national level examinations. It is necessary to have short and crisp solutions to numerous problems. In order to grow on multiple fronts, stronger concepts in physics are mandatory.

The team has made efforts to minimize syllabus to a certain extent. It was always lucky for students who have aces to NCERT solutions for class 11 physics provided by experts who have topped this examination. Since physics is one such topic which forms the core to engineering students.

Why Physics Wallah is best for NCERT Solutions for Class 11 Physics?

The complete study material is available for free. All students looking forward to excelling in a career can definitely follow this. A complete set of NCERT solutions for class 11 physics is available in Pdf format, which can be downloaded with a single click. The set of solutions can be accessed on multiple devices. Ace your position in a class by following NCERT solutions for class 11 physics provided by Physics Wallah.

Some suggestions for studying NCERT Solutions for Class 11 Physics

  1. Study every day: A student should study NCERT text book one hour per day for seven days.
  2. Read Physics class 11 notes before doing the exercise of NCERT in the text book class: Reading the notes before going to the class makes further chapters get clearer.
  3. Become an active learner: Try to learn and grasp the problems as quickly as Possible and build your own concepts.
  4. Once you have confident that the concept of class 11 physics are clear than only move to exercise of NCERT and try to find the reference of Physics Wallah NCERT Solutions for Class 11 Physics.

In class 11 generally students face problems in understanding physics. This is due to that they are unable to cope up with the conceptual and numerical problems. Students from day 1 should focus on the physics subject.

They should do first of all illustrations in physics before doing unsolved problems as this will enhance their understanding of concepts and will boost their confidence. To help you while solving questions of exercise given in NCERT. We have prepared detail step by step explanation of NCERT solutions.

Frequently Asked Question (FAQs)

Q1. How NCERT text book help me to build strong foundation for class 11 Physics ?

Ans. Class 11 physics consist of very fundamental topics which are required to understand chapters of physics like u learn mechanics and unit and dimension which is used in all most chapters of physics. To score good marks in class 11 physics you need to have clear concept on theory part of the NCERT text book. Start with chapter -1 given in the NCERT textbook and prepared your notes. Mention all important formulas and derivation used in the solve all the questions given in the NCERT exercise with the help of NCERT solution for class 11 physics.

Q2. How to use NCERT solutions for class 11 physics effectively ?

Ans. While solving the exercise specially for numerical part of chapter you need few references to build the numerical solving skill. While solving questions if you face problem use NCERT solution for class 11 physics but always remember use of solution must be done after multiple self-attempts.

Q3. Should we need to solve additional MCQ based questions apart from NCERT exercise ?

Ans. Yes to do good in class 11 physics MCQ questions are very helpful. MCQ based questions will help you to understand the principle concept of the theory part. MCQ or objective type question helps to find out your mistakes.

Q4. How to solve numerical given in NCERT exercise ?

Ans. To become expert in numerical of class 11 physics you must follow three steps such as

  1. Read and understand the theory part of chapter and remember all formulas use in the chapters.
  2. Try to solve the solved example given in the NCERT text book by yourself and then check the solutions and find out the missing link.
  3. Attempt each and every question several time before taking help from NCERT solutions for class 11 Physics.

Q5. Is NCERT class 11 Physics text book is enough for entrance exam ?

Ans. Yes NCERT text book for class 11 physics is sufficient for CBSE board as well as competitive entrance exam. All most all questions asked in JEE or NEET are directly from NCERT text book.

Q6. Do we need to read additional text book for class 11 Physics Theory?

Ans. If you find problem in understanding the theory part of class 11 physics from NCERT than you can follow few additional physics reference books else it is not required.

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