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CBSE

Class 11

Physics NCERT Book

Chapter 10:

Ncert Books Class 11 Physics Chapter 10 Free Download

An Overview of Ncert Books Class 11 Physics Chapter 10 Free Download

Ever wondered how water flows in rivers or how airplanes fly in the sky? In Ncert Books Class 11 Physics Chapter 10 Free Download, you’ll discover all about the behaviour of fluids—liquids and gases—and their amazing properties. This chapter helps you understand real-life phenomena like floating, pressure differences, and even how the blood flows in your body. Plus, you’ll get handy tips and explanations that make physics feel much simpler.

The NCERT Book covers all crucial topics for your exam, like Bernoulli's principle, Archimedes' principle, and viscosity, explained with clear diagrams and examples. If you want to see the full list of topics or need a roadmap for revision, just check the Class 11 Physics Syllabus on Vedantu—everything is free and easy to access.

As you prepare, remember you can always download the chapter PDF for quick reference or practice. And if you’re aiming for exam success, you’ll also find focused practice sets at Class 11 Physics Important Questions to test your knowledge and boost your confidence!

Fluids and Properties of Fluids

Liquids and gases can flow and are therefore called fluids. It is this property that basically distinguishes liquids and gases from solids. Fluids possess characteristic physical properties seen in their behaviour when forces are applied to them.

Surface Tension & Viscosity

The amount of force per unit length necessary to deform the interfacial surface is called the surface tension, and the surface tension will always try to reduce the surface area of the liquid.

Bernouill’s Principle and Equation

Bernoulli’s Principle states that the total energy of the flowing fluid always remains constant. Bernoulli’s theorem is the principle of energy conservation for ideal fluids in steady, or streamline flow and is the basis for many engineering applications.

Pressure & Its Applications

All liquids and gases are fluids. The force exerted normally at a unit area of the surface of a fluid is called fluid pressure.

From the syllabus to the NCERT Books, past question papers and important questions with solutions everything is available on Vedantu for free! The solutions provided on Vedantu are created by experts and hence are completely reliable. Students can access all the study material they require to strengthen their understanding of topics and perfect their preparation for free on Vedantu’s site and also the app.

Key Features of Class 11 Physics Notes

Here are the key features:

Class 11 Physics especially that of Mechanical Properties of Fluids is prepared by subject matter experts and professors.
All the important topics covered under this section of Mechanical Properties of Fluids are summarized for better understanding at the end of each chapter.
The topics of Mechanical Properties of Fluids are explained in detail with diagrams, flowcharts, and important formulae to grasp quickly.
All notes and subject matter are written and compiled in simple language for better understanding.
All notes prepared at the end of each chapter of the topic Mechanical Properties of Fluids of the NCERT Books provide an overview of what is written and explained. This helps the students to gain an overall idea of the subject initially.

How To Address the Doubts Covered During the Online Session?

In order to overcome difficulties while solving the exam question paper, the students can refer to the website for guidance and review. Solutions are framed in easy steps to help students understand and grasp better.
PDFs of exercise-wise questions of the covered chapters are available on our website. Detailed explanations to aid in solving problems and understanding concepts are provided.
Questions can now be answered easily. A detailed diagram is provided to aid students to visualize and pick up answers with ease.

Download the PDF file for this chapter today and use it at your convenience. You can access this file anytime anywhere to clear doubts and ease your preparations. Use your smartphone or computer to download and store this file. Seek professional mentoring from the top experts of Vedantu to become better in ths subject.

FAQs on Ncert Books Class 11 Physics Chapter 10 Free Download

1. Which topics from Mechanical Properties of Fluids are most important for the Class 11 Physics exam in 2025-26?

For the Class 11 exams, you should focus on these key areas as they frequently carry high marks:

Bernoulli's principle and its applications (e.g., aeroplane wings, venturi-meter).
Surface tension, including surface energy, angle of contact, and capillary rise.
Viscosity, including Stokes' Law and terminal velocity.
Pascal's Law and its application in hydraulic systems.
Archimedes' Principle and questions on buoyancy.

Questions from these topics often appear as both short-answer (3-mark) and long-answer (5-mark) types.

2. What types of numericals should I practice most from this chapter for my exams?

To score well, it's crucial to practice numericals based on:

The equation of continuity (A1v1 = A2v2) combined with Bernoulli's equation.
Calculating the terminal velocity of objects falling through a viscous fluid using Stokes' Law.
Problems involving capillary rise or fall to find surface tension or the radius of the tube.
Applications of Pascal's Law in hydraulic lifts, to calculate forces and pressures.

3. How can I ensure I get full marks for a 5-mark question on Bernoulli's principle?

To secure full marks on a long-answer question about Bernoulli's principle, follow these steps:

Start by clearly stating Bernoulli's principle and its formula.
Always mention the key assumptions, such as the fluid being incompressible, non-viscous, and in streamline flow.
Draw a neat, labelled diagram to support your explanation or derivation.
Show all calculation steps clearly, ensuring unit consistency (e.g., converting all units to the SI system).
End with a concluding statement that directly answers the question asked.

4. Why are derivations like the formula for terminal velocity considered important exam questions?

Derivations are important because they test your fundamental understanding, not just your memory. Deriving the formula for terminal velocity, for instance, shows the examiner you can:

Apply Stokes' Law correctly.
Understand the concept of buoyancy (upthrust).
Set up and solve an equation based on the equilibrium of forces (gravitational force, buoyant force, and viscous drag).

This demonstrates a deeper grasp of fluid dynamics principles.

5. What are some common mistakes students make in questions about pressure and Archimedes' principle?

Students often lose marks due to simple mistakes. Be careful to avoid these:

Confusing absolute pressure with gauge pressure. Always read the question carefully to see which one is required.
Making errors in the free-body diagram for buoyancy problems, especially with the direction of forces.
Forgetting to use the density of the displaced fluid, not the object, when calculating the buoyant force.
Unit conversion errors, especially between pascals (Pa), atmospheres (atm), and mm of Hg.

6. How are HOTS (Higher-Order Thinking Skills) questions framed from topics like surface tension?

HOTS questions on surface tension move beyond direct formula application. You might be asked:

To explain why a liquid drop is spherical (related to minimising surface area and energy).
To compare the shapes of menisci for different liquid-solid pairs (e.g., water-glass vs. mercury-glass) and relate it to the angle of contact.
To solve a problem where an insect is supported on the water's surface, requiring you to resolve the forces due to surface tension.

These questions test your ability to apply the concept in unfamiliar situations.

7. For short-answer questions, is it better to focus on definitions or numericals?

For 2 or 3-mark questions, you should prepare for both. Examiners often test conceptual clarity with questions like:

Define streamline flow and turbulent flow.
What is the angle of contact? When is it acute or obtuse?
Explain why small liquid drops are spherical.

Equally common are short, formula-based numericals on pressure (P = hρg) or Pascal's law, so a balanced preparation is key.