The book which can be referred to for ‘basic mathematics’ of physics of class 11 to clear all doubts is the book “Chapter-wise NCERT + Exemplar + Practice Questions with Solutions for CBSE Physics Class 11”. This book is divided into 3 parts. Part A has solutions (question-by-question) of all the questions/exercises given in the NCERT textbook. Part B has solution to questions given in the NCERT Exemplar book. Part C has selected questions for practice required in class 11 examination along with solutions.

The solutions are structured in such a way that all the concepts get cleared by the students.

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**Revision notes of Physics Class 11**

Here are some important points covered in Chapter 1

- Details about scientific method of observation and mathematical modelling.
- The two main types of approaches in physics (unification and reduction).
- How physics impacts the development of devices and the use of concepts of physics in different facets.
- Different avenues of physics and its division into two types based on the scope (classical physics and modern physics).
- Macroscopic and microscopic phenomena in physics.

Chapter 2- Units and measurements

It covers various units of measurements and their use in measuring distance or time between many objects. The main portions are:

- Measurement and units for quantities like length, time, etc.
- How to measure long distances using the parallax method.
- The use of an electron microscope for measuring small distances.
- Measuring time using an atomic clock.

Chapter 3- Motion in a straight line

Some important terms related to kinematics are:

- Motion in one dimension and important features related to it.
- Rest and motion
- Position, distance, and placement
- The difference between speed and velocity

Chapter 4- Motion in a plane

The main points in chapter 4 are:

- Scalar and vector- unit vector, parallel vectors
- Addition, subtraction, and scalar multiplication of vectors
- Average and instantaneous velocity
- Position vector and displacement
- Projectile motion

Chapter 5- Law of motion

The chapter includes:

- Definition of force and basic forces
- newton’s law of motion
- Linear momentum
- Principle of conservation of momentum

Chapter 6- Work, Energy, and power

The important topics in this chapter are:

- Work and dimensions of the unit of work
- Conservative and non-conservative forces
- Power
- Energy
- Kinematic energy and its relationship with momentum

Chapter 7- Systems of particles and rotational motion

The key points of this chapter are;

- The types of motions such as transitional motion, rotational motion, and rotational plus translational motion
- Rotational dynamics-It has Newton’s laws, the moment of inertia, and theorems based on these concepts
- Angular momentum, impulse
- work and energy
- Rolling- The rolling and sliding which takes place on an inclined plane

Chapter 8- Gravitation

The main points in this topic are:

- Newton’s law of gravitation
- The universal constant of gravitation (g) and the variation in g which are based on the distance of the object above the earth’s surface
- Satellite- It talks about how a satellite is projected to become a circular orbit around a planet.
- Orbital velocity
- Period of revolution of a satellite

Chapter 9- Mechanical properties of solids

It discusses about how even rigid bodies can be bent and stretched by applying enough external force. You will get to learn about:

- Deforming force
- Elasticity
- Stress
- Perfect elastic body
- Types of stress- Longitudinal, tangential or shearing
- Hooke’s law

Chapter 10- Mechanical properties of fluids

This chapter explains about Pascal’s and Archimedes’ principles related to fluid dynamics. The key points of this chapter are:

- Fluid mechanics
- Pascal’s law
- Archimedes’ Principle
- Fluid dynamics- steady flow, line of flow
- The velocity of Efflux
- Bernoulli’s theorem

Chapter 11- Thermal Properties of matter

This chapter deals with heat and thermodynamics. The main points are;

- Thermal properties of matter- temperature, heat, absolute temperature scale, measurement of temperature
- Thermal expansion
- Heat transfer- conduction, convection, radiation
- Newton’s law of cooling

Chapter 12- Thermodynamics

Here, students will get to know about the interrelation between heat and other forms of energy. The key concepts are:

- Thermal equilibrium
- Heat, work, internal energy
- Concepts like static variables, equation of state, quasi-static process
- Isothermal process
- 1
^{st}law of thermodynamics and its applications

Chapter 13- Kinetic theory

The important topics in this chapter are:

- Kinetic theory
- Molecular nature of matter- Dalton’s atomic theory, Avogadro’s law, Gay Lussac’s law
- Molecular structure of solids, liquids, and gases
- Discussion about the behavior of gases and the perfect gas equation
- How Boyle’s and Charle’s laws are deduced

Chapter 14- Oscillations and waves

The key points of this chapter are;

- About the definition of oscillation and waves
- Main concepts related to oscillation like amplitude, period, acceleration, etc.
- Simple harmonic motion time
- Damped and forced oscillations

Do you know the answer of the following question?

The vector sum of the forces of 10 newton and 6 newton can be:

- A) 2N
- B) 8N
- C) 18N
- D) 20N