NCERT Solutions for Class 11 Physics

NCERT Solutions for Class 11 Physics are one of the most reliable sources to refer to for solving the questions given in the exercises. The NCERT Solutions can be easily used to resolve all kinds of confusions regarding the NCERT Class 11 Physics chapters. The science subject matter experts at Instasolv have created and compiled the chapter-wise summaries and solutions to all the questions of each exercise of  CBSE Class 11 Physics Book.

NCERT Class 11 Physics is the foundational book for Science at the higher secondary level. It requires to be studied carefully with minute assessment. This book has 15 chapters and every chapter covers the important topics for the final exam. You must understand the concepts in chapters thoroughly and also cover the questions given at the end to prepare yourself for your exam to score good marks.

As each Chapter of NCERT Class 11 Physics book has 20-25 questions on an average, the NCERT Solutions for Class 11 Physics help you to practice these and verify the answers as well. It is going to help you to study on your own and to score high in your CBSE exam. You must remember that practice is the only way to perform better. The solutions provided to you will help in giving an overview of how to understand and solve the most challenging questions in your exam.

Class 11

Chapter-wise NCERT Solutions for Class 11 Physics

Before you look into the details of each chapter and to solve the respective questions let us have a glance of various topics covered by the NCERT Class 11 Physics Textbook. Some of the important topics that have been covered  are the basic laws that govern the Physical World around us, the basic units of measurement, the laws of motion like motion in a straight line, motion in a plane are the core ones.

It also introduces us to the concepts of work, energy and power, systems of particles and rotational movement. Furthermore, it also provides a detailed study of gravitation, thermodynamics, kinetic theory. 

We also study oscillations, waves and the mechanical properties of solids and fluids. The book gives us a good introduction to all the concepts which you need to know for the CBSE exam. And, along with the basic ideas, the chapters also provide detailed study and practice questions at the end. Here the NCERT Solutions for CBSE 11 Physics come as great help because it enables you to solve all the confusing questions and to gain further clarity of the concepts.

NCERT Solution for Class 11 Physics Chapter 1: Physical World

The first chapter of NCERT Class 11 Physics gives you an introduction to the fundamentals of the Physical World and Natural Sciences. It introduces the Physics subject and tells you about its scope. It also talks about Mechanics, and Newton’s Law on Motion and Gravitation and further explains the concepts with vivid examples like the equilibrium of a bent road under load or propulsion of a rocket by ejecting gases. It gives you useful information about other important ideas like electrodynamics, optics and thermodynamics and lets you know about the microscopic domains that include the phenomena related to atoms, molecules and nuclear. 

Total Number of Questions: There are about 16 questions at the end of chapter 1 which require short or longer description and evaluation of ideas that you learn in the chapter. NCERT Solutions for Class 11th Physics has provided comprehensive answers to all the questions. First, you can write the answers on your own after reading and understanding the chapter and then look at the summaries provided by our science subject matter experts. Then you can evaluate your summaries from solutions provided by Instasolv experts.

NCERT Solution for Class 11 Physics Chapter 2: Units and Measurements

Chapter 2 mainly talks about the definition of a unit, fundamentals and derived units, the different unit systems followed like the SI unit, which is internationally accepted. You are also provided with information about different units of measurement like metre for length, kilogram for mass and so on. The focus of this chapter shifts on the measurement of distance like measurement of large distances and the different concepts associated with it like measurement of distances of a planet through the ‘parallax method’. 

Measurement of small distances is done through an electron microscope. You come to know about the units of small measurements like estimating the size of a molecule of Oleic Acid. You also get detailed knowledge about the measurement of other units like time and mass, methods and instruments used in the measurement and accuracy and precision of such instruments. Sometimes errors occur due to the instruments of measurement, the type of errors and the concept of a significant number. 

This chapter also tells you about the dimensions of physical quantities and various applications of the dimensional analysis.

Total Number of Questions: The NCERT Solutions of chapter 1 provides solutions with explanations for the 31 questions given at the end. The questions are mainly numerical and also the solutions will help you to analyze whether you are solving them right. The questions require the application of the concepts you read in this chapter, so first, read and understand the summary and then start solving the questions.

NCERT Solution for Class 11 Physics Chapter 3: Motion in a Straight Line

This chapter deals with motion in a straight line which is a fundamental concept in Kinematics, the measurement and other technical aspects. You are taught the crucial topics like identifying reference points, path length, the frame of reference, displacement size, relative velocity, acceleration, instantaneous velocity, delay, speed and so on in this chapter. The notes and summary created by the experts at Instasolv will help you with your better comprehension of all these concepts. 

They provide lucid explanations. Interesting illustrations simplify the ideas to make them easy to grasp and so are a few conceptual differences like one between speed and velocity, scalar or vector quantity have been explained precisely with relevant diagrams.

Total Number of Questions: NCERT Class 11 Physics chapter 3 has 28 questions given in the exercise which are mostly numerical and thus require an application. NCERT Solutions for Class 11 Physics will help you in solving all such questions, some of which may be slightly confusing to you. When you have comprehensive solutions available for the questions you can solve them on your own and refer to these whenever you get stuck. 

NCERT Solution for Class 11 Physics Chapter 4: Motion in a Plane

CBSE Class 11 Physics chapter Motion in a Plane covers some of the most important aspects of Physics Subject. It deals with the concepts like the equality of vectors, displacement and position of vectors, addition, subtraction and multiplication of vectors by the real numbers. Various examples of uniform acceleration projectile motion, uniform circular motion, uniform velocity and so on have also been covered. Categorization of scalar and vectors, resolution of vectors, motion in the plane with constant acceleration, relative velocity in 2D are some of the other topics that you will learn in this chapter.

NCERT Solutions for CBSE Class 11 Physics has all the answers to the different kinds of questions posed in this chapter like differences between scalar and vector quantities, the algebraic expression on scalar quantities, some dealing with the magnitude of vectors and their co-linearity. There are 31 questions, a few MCQ types and others numerical that you need to solve.

NCERT Solution for Class 11 Physics Chapter 5: Law of Motion

Chapter 5 opens with the definition of force and the basic type of forces like weight, contact force, normal force etc. It also tells you about the very important concept- Newton’s Laws of Motion and gives you a detailed explanation of the three laws of motion. We learn about linear momentum, impulse, the apparent weight of a body and a lift, principle of conservation of linear momentum.

It also teaches us about the concepts of friction and different kinds of frictions, coefficient, angle, methods of changing friction. Concepts like uniform circular motion, centripetal and centrifugal force and related concepts of rounding off a level curved road, bending of a cyclist requires detailed study and comprehension. 

Total Number of Questions: There are 40 application-based questions that are very much important from the CBSE exam point of view as these questions are frequently asked from this chapter. So, practice all questions and self-evaluate your answers from our solutions.

NCERT Solution for Class 11 Physics Chapter 6: Work, Energy and Power

Chapter 6 is an extremely important chapter in the Class 11 Physics book as it tells you about work, the dimensions and nature of work, work done as a variable force. You learn about the conservative and non-conservative forces, power, energy and kinetic energy, the relation between kinetic energy and linear momentum. You will also know about potential and mechanical energy and its different forms, mass-energy equivalence and the principle of conservation of energy. This chapter concludes with the dynamics of variable force and circular motion. 

Total Number of Questions: The experts at Instasolv have a comprehensive solution to all 30 questions asked in chapter 6. The questions test your understanding and grasp over the concepts, so you should practice all questions which will help you prepare for your CBSE exam. 

NCERT Solution for Class 11 Physics Chapter 7: Systems of Particles and Rotational Motion

In chapter 7, you learn about the kinetics of the system of particles like angular displacement, angular velocity and the like. This chapter gives you many examples of different kinds of motions for your better understanding of the theory and tells you about the interrelationship between kinematics variables. Other concepts such as rotational dynamics, the moment of inertia, various theorems on it like parallel axis theorem or perpendicular axis theorem have also been dealt with. You also need to understand the concepts of angular momentum, impulse, and various aspects of energy, rolling, sliding and falling.

Total Number of Questions: There are 33 questions in the Class 11 Physics book. The solutions of the questions are prepared by the subject matter experts in a comprehensive manner. Read and try to understand the chapter on your own and then refer to these solutions for better clarity.

NCERT Solutions for Class 11 Physics Chapter 8: Gravitation

Gravitation is one of the most significant chapters in NCERT Class 11 Physics and starts with Newton’s Law of Gravitation, the universal constant of gravitation, variation in ‘g’ and variation due to rotational motion of the earth and others. You get to know about the satellites, how they are launched, orbital velocity and the period of revolution of a satellite etc. You need to understand the gravitational field, intensity and potential, gravitational potential energy, escape velocity of a body.

 This chapter also informs you about communication satellites, weightlessness, and the very important concept of Kepler’s Laws and sub-topics under it like the centre of gravity, inertial mass and others.

Total Number of Questions: There are different types of questions that have been given for practice. All of which have been solved by our experts at Instasolv. Some questions require mathematical applications while for others you need to provide short explanations or pick the correct option. The solutions will help you in cross checking whether your understanding and practice is on the right track or not. 

NCERT Solutions for Class 11 Physics Chapter 9: Mechanical Properties of Solids

Chapter 9 primarily talks about the different concepts like deforming force, elasticity, plasticity, stress and types of it along with its Mathematical expression. Strain, Hooke’s Law, rigidity, compressibility and stress-strain curve are some of the other concepts that you learn in this chapter. Few other areas covered are elastic after effect, elastic fatigue, materials with different elasticity like ductile or brittle material, elastomers, the elastic potential energy of a stretched wire, Poisson’s ratio and finally the different applications of elasticity.

Total Number of Questions: There are about 22 questions in the chapter. Most of them require an in-depth understanding of the concepts as they need to be applied to find the answers. Some questions are also based on graphs to test your overall understanding. Once you go through the solutions, all your doubts will be resolved.

NCERT Solutions for Class 11 Physics Chapter 10: Mechanical Properties of Fluids

This is a relatively short but important chapter on Fluid Mechanics that tells you about fluid statics, fluid pressure, Pascal’s Law, Archimedes Principle, fluid dynamics and the equation of continuity. You need to understand Bernoulli’s Theorem, viscosity, Stoke’s Law, Poiseuille’s Formula, Terminal Velocity, Reynold Number and Surface Energy as well. Important topics like excess pressure, angle of contact, capillary tube and capillary action, adhesion and cohesion are also covered in this chapter.  

Total Number of Questions: There are 30 questions in all and practising them will give you a good hold over the concepts covered to boost your confidence in the CBSE exams. NCERT Solutions for CBSE Class 11 Physics covers all the questions with well-researched answers so that you are prepared for exams like NEET, JEE Main and JEE Advanced. 

NCERT Solutions for Class 11 Physics Chapter 11: Thermal Properties of Matter

In chapter 11, you come across the concepts about which we may have read earlier but now we need to know in detail. These concepts are temperature and heat, measurement of temperature, different scales of measurement, thermometers, thermal expansion and calorimetry etc. Change in temperature, change in state, relation with pressure, heat transfer, conduction, convection, radiation, Newton’s laws of cooling, approximation and others are some important topics that have been covered in this chapter.

Total Number of Questions: NCERT Class 11 Physics Chapter 11 has 22 questions. Our solutions provides detailed step-wise answers with explanations as most questions of the chapter are application-based. 

NCERT Solutions for Class 11 Physics Chapter 12: Thermodynamics

The chapter on Thermodynamics teaches you about several new concepts such as thermodynamic system, thermal equilibrium, heat, work and internal energy, various terminologies associated with Thermodynamics, the laws of thermodynamics and their applications. Adiabatic process, isothermal, isobaric and isochoric processes, melting process, boiling and cyclic processes, heat engines and other applications. Each Law is discussed in great detail along with their applications and limitations. A very important section on Kinetic Energy of gases has several sub-topics under it.

Total Number of Questions: Thermodynamics is one of the most important chapters of Class 11 Physics subject as several questions are asked on it in the CBSE exam. There are 10 questions which require detailed explanation and analysis of the concepts that the chapter teaches us.

NCERT Solutions for Class 11 Physics Chapter 13: Kinetic Theory

CBSE Class 11 Physics chapter 13 takes us through the concepts of molecular nature of matter, Dalton’s theory, Avogadro’s law, the molecular structure of solids, liquids and gases, behaviour of gases and so on. Perfect gas equation and its forms, real and ideal gas, Charles and Boyle’s law, kinetic theory of an ideal gas, the law of equipartition of energies or Degrees of Freedom and its various categories, are some of the other sections in this chapter. 

The chapter concludes with the concept of specific heat capacity, the specific heat of different types of gases, the specific heat of water, for solids and mean free path and its expression. 

Total Number of Questions: There are 14 questions given at the end of this chapter which needs to be practised repeatedly to improve performance in the exam. The questions are analytical in nature and understanding of the concepts to the core is very important. The NCERT Solutions for Class 11 Physics will help you not only with the solutions but also in internalizing the approach to solve these kinds of questions which will result in high scores.

NCERT Solutions for Class 11 Physics Chapter 14: Oscillations

Chapter 14 introduces us to the concept of oscillations and some important terms associated with the concept like amplitude, time, frequency and phase. It also talks about the relations with position, velocity, acceleration and energy. Additionally, time, the oscillation of a block connected to a spring, oscillation of a cylinder floating in a liquid, liquid oscillating in a U-Tube have also been explained. It also discusses angular oscillation, working of a simple and physical pendulum, damped and forced oscillations.

Total Number of Questions: The exercise at the end of Class 11 Physics chapter 14 has 19 questions covering all the important topics taught, where you need to choose the correct option or are numerical applications. To choose the correct answer you need to attain a good understanding of the concepts which the NCERT Solutions will help you in.

NCERT Solutions for Class 11 Physics Chapter 15: Waves

In this chapter, we learn about the different types of wave, the speed of longitudinal waves, Newton’s formula, Laplace’s correction, waves travelling in the opposite direction and so on. Vibration in a stretched string which is fixed at both ends or one end, vibrations in an organ pipe with both ends open or closed pipe with one end closed also need to be understood.

Finally, the concept of Doppler effect, special cases and exceptions and characteristics of sound and waves with different frequencies are covered.

Total Number of Questions: NCERT Solutions for CBSE Class 11 Physics cover all the 21 questions of this chapter comprehensively and you can learn how to answer such challenging questions. With continuous reading, understanding and practice, all your doubts will be cleared and the concepts will get embedded in your mind. This will help you to tackle any kind of question as the solutions by Instasolv aim at improving your comprehension and teach you effective application of your knowledge. 

Why Refer to NCERT Solutions for Class 11th Physics by Instasolv

  • The solutions for Class 11 Physics has been carefully created by the science subject experts at Instasolv; 
  • Every step has been taken to make the solutions strictly follow the CBSE exam pattern; 
  • Refer to our notes and solutions to clear your doubts and make your preparation smooth and efficient; 
  • The summaries of the chapter help you in quick revision and you do not need to open the book again and again; 
  • Once you practice the questions, you get all the solutions along with explanations at one place; 
  • NCERT Solutions for CBSE Class 11 Physics is a one-stop source of reference and you do not need to search for the solutions from different sources; 

The solutions by Instasolv are created in a very easy to understand and detailed manner so that your overall understanding and academic performance is improved.