NCERT Class 11 Physics Book Physics Part II: Chapters, PDFs and What’s Inside

The NCERT Class 11 Physics Book Physics Part II is the second official volume of the Class 11 Physics textbook. It runs from Chapter 8 (Mechanical Properties of Solids, p. 167) to Chapter 14 (Displacement Relation in a Progressive Wave, p. 278) — seven chapters over 133 printed pages that complete what Part I begins.

The official PDFs of all seven chapters are on this page, direct from NCERT. This page also shows what is actually inside the book: each chapter’s named sections with their starting pages, its indexed figures, and the size of its exercise set — so you can see where a chapter’s weight sits before you open a file.

Download the NCERT Class 11 Physics Book Physics Part II PDFs

These are NCERT’s own files, hosted on ncert.nic.in — the chapter PDFs run from keph201.pdf for Chapter 8 to keph207.pdf for Chapter 14. Open the chapter you need directly; the table lists every chapter, its printed page range and the official link.

The Class 11 Physics book PDF at a glance

Book-level numbers first. Every figure below is rendered again in the tables on this page.

• 7 chapters, numbered 8 to 14, across 133 printed pages (p. 167 to p. 299).
• 95 named sections — NCERT’s own numbered headings — across the seven chapters.
• 86 verified numbered figures indexed from the textbook, with their printed captions.
• 90 end-of-chapter exercise questions in total, with the load concentrated late in the book.
• No chapter contains an activity — every chapter teaches through worked examples, figures and the end-of-chapter questions.
• All 7 chapter PDFs are the verified official NCERT files, linked in the table above.
• 7 chapter study pages — one per chapter, each page’s status shown below.

Physics class 11 NCERT chapters — what each one contains

The directory below lists all seven chapters as they run in the book. Here is what the columns count: a section is one of NCERT’s own numbered headings, a figure is a numbered figure indexed from the book with its printed caption, and a question is an end-of-chapter exercise.

The figure column carries caption text only on this page — the diagrams themselves sit inside the chapter study pages.

Chapter 8: Mechanical Properties of Solids (pp. 167-179)

When a wire hangs from a ceiling with a weight on its lower end, the ceiling pulls back with an equal and opposite force. The wire is stretched from both ends, and tension transmits that pull through its full length.

Hooke’s law holds only in the linear part of the stress-strain curve. Young’s modulus and shear modulus apply only to solids, because only solids have definite lengths and shapes; bulk modulus applies to solids, liquids and gases, since it describes volume change under uniform stress that leaves shape unchanged.

The three moduli — Young’s (p. 170), shear (p. 172) and bulk (p. 173) — sit inside the Elastic Moduli section.

• Stress and Strain (p. 168)
• Hooke’s Law (p. 169)
• Stress-Strain Curve (p. 169)
• Elastic Moduli (p. 170)
• Applications of Elastic Behaviour of Materials (p. 174)

With 7 figures and 16 of the book’s 90 exercise questions, it is a compact, definition-driven opening chapter.

Chapter 9: Mechanical Properties of Fluids (pp. 180-201)

Pressure is a scalar even though it is defined as force per unit area — the ‘force’ in the definition is the normal component, which has no single direction. Pressure exists at every point inside a fluid, not only on container walls or on immersed solids.

The relation \(P = P_s + \rho gh\) assumes an incompressible fluid, so it holds for liquids, whose density stays nearly constant with height. Gauge pressure is the difference between the actual pressure and atmospheric pressure, which is what tyre gauges and blood-pressure devices read.

• Pressure (p. 180)
• Streamline Flow (p. 186)
• Bernoulli’s Principle (p. 187)
• Viscosity (p. 190)
• Surface Tension (p. 192)

With 18 figures — the most in the book — and 16 of the 90 exercise questions, this is the volume’s most diagram-heavy chapter.

Chapter 10: Thermal Properties of Matter (pp. 202-225)

Thermal Properties of Matter builds in one continuous arc. It opens by separating temperature from heat, then develops the tools for measuring temperature — the ideal-gas equation and absolute temperature — before applying them to expansion, specific heat, calorimetry and change of state.

It ends with the three modes of heat transfer and Newton’s law of cooling. This chapter prints no recap, so the nine numbered sections below are also your revision list.

• Temperature and Heat (p. 202)
• Measurement of Temperature (p. 203)
• Ideal-Gas Equation and Absolute Temperature (p. 203)
• Thermal Expansion (p. 204)
• Specific Heat Capacity (p. 208)
• Calorimetry (p. 209)
• Change of State (p. 210)
• Heat Transfer (p. 214)
• Newton’s Law of Cooling (p. 219)

At 24 pages it is the longest chapter here, and with 16 figures and 10 exercise questions it is also the only one that leaves revision notes entirely to you.

Chapter 11: Thermodynamics (pp. 226-243)

Temperature is linked to a body’s average internal energy, not to the kinetic energy of its centre-of-mass motion — a fired bullet is not hotter because of its speed. Thermodynamic equilibrium means the macroscopic state variables do not change with time, which is a different condition from mechanical equilibrium.

Inside a system in thermodynamic equilibrium, the microscopic constituents are themselves not in mechanical equilibrium. Heat capacity depends on the process by which heat is supplied, which is why the chapter distinguishes its processes so carefully.

• Thermal Equilibrium (p. 227)
• Zeroth Law of Thermodynamics (p. 228)
• Heat, Internal Energy and Work (p. 229)
• First Law of Thermodynamics (p. 230)
• Specific Heat Capacity (p. 231)
• Thermodynamic State Variables and Equation of State (p. 232)
• Thermodynamic Processes (p. 233)
• Second Law of Thermodynamics (p. 236)
• Reversible and Irreversible Processes (p. 236)
• Carnot Engine (p. 237)

With 17 named sections — the second-highest count in the volume — and just 8 exercise questions, its weight sits in concepts and processes rather than question practice.

Chapter 12: Kinetic Theory (pp. 244-258)

Pressure exists everywhere inside a gas, not only at the walls — a layer of gas inside a container is in equilibrium because the pressure is the same on both sides of it. The intermolecular distance in a gas is only about ten times the interatomic spacing in solids and liquids.

The law of equipartition of energy states that each degree of freedom in thermal equilibrium carries \(\frac{1}{2}kT\) of energy, with each quadratic term in the molecule’s energy expression counting as one degree of freedom.

Air molecules do not settle on the floor because their speeds and incessant collisions keep them distributed — only a slight density increase appears at lower heights.

• Molecular Nature of Matter (p. 244)
• Behaviour of Gases (p. 246)
• Kinetic Theory of an Ideal Gas (p. 248)
• Law of Equipartition of Energy (p. 252)
• Specific Heat Capacity (p. 253)
• Mean Free Path (p. 254)

With 15 pages, 7 figures and only 3 of the book’s 90 exercise questions, it is the shortest chapter and the one where revision has to come from the sections, not from question practice.

Chapter 13: Oscillations (pp. 259-277)

The period \(T\) is the least time after which motion repeats itself, and the motion also repeats after \(nT\) for any whole number \(n\). Not every periodic motion is simple harmonic — only motion governed by the force law \(F = -kx\) qualifies.

Circular motion can come from an inverse-square force, as in planetary motion, or from a simple harmonic force in two dimensions, \(-m\omega^2 r\), in which case the phases in the two directions are related. For linear SHM with a given \(\omega\), two initial conditions — initial position and initial velocity — are necessary and sufficient to fix the motion completely.

• Periodic and Oscillatory Motions (p. 260)
• Simple Harmonic Motion and Uniform Circular Motion (p. 264)
• Velocity and Acceleration in Simple Harmonic Motion (p. 266)
• Force Law for Simple Harmonic Motion (p. 267)
• Energy in Simple Harmonic Motion (p. 268)
• The Simple Pendulum (p. 270)

With 13 figures and 18 of the book’s 90 exercise questions, it carries the second-heaviest exercise load in the volume.

Chapter 14: Displacement Relation in a Progressive Wave (pp. 278-299)

A wave is not motion of matter as a whole: wind carries air from one place to another, while a sound wave only carries compressions and rarefactions through the air. In a wave, energy and not matter is transferred from one point to another.

In a mechanical wave, transfer happens because elastic forces couple neighbouring oscillating parts of the medium. Transverse waves need a medium with shear modulus, which is why they do not travel through fluids; longitudinal waves need only bulk modulus and therefore travel through solids, liquids and gases.

• Transverse and Longitudinal Waves (p. 280)
• The Speed of a Travelling Wave (p. 284)
• The Principle of Superposition of Waves (p. 287)
• Reflection of Waves (p. 288)
• Beats (p. 293)

With 15 figures, 12 sections and 19 of the book’s 90 exercise questions, it closes the volume with the heaviest exercise load of all.

Class 11 physics chapters — study pages

Each of the seven chapters has a study page on this site; the list below shows the current state of each one.

How to use the Class 11 Physics book for revision

Follow the order the book’s own logic sets.

1. Chapters 8 and 9 — mechanical properties of solids, then fluids. Definitions and the relations between the moduli form the core.
2. Chapters 10, 11 and 12 — thermal properties, thermodynamics, kinetic theory, in that order. Expansion, the ideal-gas equation, thermodynamics and kinetic theory reuse the same temperature and pressure ideas, so reading them in sequence pays off.
3. Chapters 13 and 14 — oscillations and waves, back to back. Chapter 13’s simple harmonic motion equations are the groundwork for Chapter 14’s travelling waves.

Chapter-specific tactics:

• Six chapters print a POINTS TO PONDER recap at the end (8, 9, 11, 12, 13, 14). Reading those six closing pages is the fastest revision pass in the book.
• Chapter 10 has no recap, so condense its nine numbered sections — from temperature scales to Newton’s law of cooling — into your own notes.
• Chapters 13 and 14 reward graph practice: displacement, velocity and acceleration curves in SHM, and wave displacement against position and time.
• Chapters 8, 9 and 12 reward definitions and formula recall over problem practice.

The exercise load sits late in the book: chapters 13 and 14 together carry 37 of the 90 end-of-chapter questions. Remember that textbook contents and the examinable syllabus are not always identical — check the current official syllabus.

What this Class 11 physics textbook asks of you

The seven chapters fall into three blocks, each demanding a different kind of work.

Choose your starting point from your weakest area: graph and phase trouble points to chapters 13 and 14; laws, cycles and state variables point to chapter 11; shaky definitions and units point to chapters 8, 9 and 12.

Related NCERT books and pages

• NCERT books directory — browse every class and subject on this site from the root page.
• Class 11 hub — the landing page for all Class 11 subjects on this site.
• Class 12 Physics book — the next volume in the same subject line, for when Part II is finished.

Sources and data verification

This listing is maintained for the 2026-27 academic session using the NCERT textbook information available to us. NCERT remains the authority for confirming the latest edition.

• The section titles, figure captions and counts on this page describe the NCERT Class 11 Physics Part II textbook, official edition — chapters 8 to 14, pp. 167-299, PDFs hosted on ncert.nic.in (keph201.pdf through keph207.pdf).
• This page covers Part II only. Part I (chapters 1-7) and the CBSE syllabus are not listed here.
• This listing is maintained for the current academic session using the NCERT information available to us.
• NCERT settles textbooks, editions and PDFs; CBSE settles curriculum, syllabus and examinations.

Reference: NCERT Class 11 Physics textbook, official edition on ncert.nic.in. Figure captions and section titles quoted from the textbook; page references are to the official PDF.

FAQs

How many chapters are in the NCERT Class 11 Physics book Physics Part II?

The book has 7 chapters, numbered 8 to 14, spanning pp. 167-299 — 133 printed pages in all. It opens with Mechanical Properties of Solids (p. 167) and closes with Displacement Relation in a Progressive Wave (p. 278).

Are the Physics Part II PDFs on this page the official NCERT files?

Yes. The chapter PDFs in the table above are NCERT’s own files hosted on ncert.nic.in, named keph201.pdf through keph207.pdf — the same files the official site serves.

Which chapter covers Bernoulli’s principle, viscosity and surface tension?

Chapter 9, Mechanical Properties of Fluids (pp. 180-201). Bernoulli’s Principle opens at p. 187, Viscosity at p. 190 and Surface Tension at p. 192.

Which chapters should I study together for the thermal portion of the book?

Chapters 10, 11 and 12 — Thermal Properties of Matter, Thermodynamics and Kinetic Theory. They reuse the same temperature and pressure ideas, so reading them in order makes the later chapters much easier.

Where do the answers to the end-of-chapter exercises live?

The exercise questions are printed at the end of each chapter in the official PDFs linked above. For step-by-step solutions, check the chapter’s study page on this site in the section above, where each page’s status is shown.