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

NCERT Solutions, for Class 11 Physics Chapter 10, are one of the prime and unique study sources for you. Relying on them means that you can prepare smartly for your upcoming Physics exam. The explanations provided to you by our subject matter experts about this chapter will prepare you for your CBSE exams as well as the future entrance exams such as JEE Main or JEE Advanced.

Chapter 10 of NCERT Solutions for Class 11 Physics on Mechanical Properties of Fluids comprises 31 questions. These questions are mainly on the following sub-topics including Pressure, Streamline Flow, Bernoulli’s Principle, Viscosity, Reynolds Number, and Surface Tension. This chapter is one of the most important topics in Physics. Solving its questions will help you understand liquids and gaseous forms of substances in a better manner.

We, at Instasolv, bring hassle-free and concise study materials for you to avail the maximum benefit possible. As a team of expert physics teachers have prepared these NCERT solutions according to the latest CBSE syllabus, you are going to be benefitted the most from them. These exclusive materials on the Mechanical Properties of Fluids will help you to understand even the toughest of the concept with the easiest descriptions.

## Important Topics for NCERT Solutions for Class 11 Physics Chapter 10 – Mechanical Properties of Fluids

What are Fluids?

Class 11 Physics NCERT Solutions for Chapter 10 begins with the description of fluids. Fluids are the substances which can flow when an external force is applied to them. Various liquids and gases are examples of fluids. Fluids don’t have any definite shape of their own. But they acquire the shape of the containing vessel. The total force exerted by liquid at rest on a given surface is known as the Thrust of a Liquid. The SI unit of Thrust is Newton.

Properties of Fluids

This chapter describes further about the two main properties of fluid mechanics namely hydrostatics (when the fluid is at rest) and hydrodynamics (when the fluid is in motion). The normal force exerted by a liquid per unit area of the surface in contact is referred to as Pressure of liquid or Hydrostatic Pressure.

Laws Related to Fluids

Important laws related to fluid mechanics have also been discussed in this chapter. The first law is the Pascal’s Law that describes the pressure at a given point in the enclosed liquid in equilibrium transmitted equally in all directions in liquid and to the wall of the apparatus, e.g., the working of a hydraulic jack, hydraulic press, automobiles are based on the Pascal’s Law.

Atmospheric Pressure

Atmospheric pressure is an integral part of the fluid mechanics that have been explained in this chapter. The pressure exerted by the atmosphere on earth is atmospheric pressure. Atmospheric pressure is about 100000 N/m2, which is equal to a weight of 10 tones on 1m2. The atmospheric pressure doesn’t crush our body because the pressure of the blood flowing through the circulatory system balances this pressure. It is also measured in torr and bar. An Android barometer is used to measure atmospheric pressure.

Buoyancy

A particular force which forms a very important part for understanding the mechanics of fluid is the Buoyancy. It is a force that comes into play when the body is partially or fully immersed in a fluid. The buoyant force acts at the centre of gravity of the liquid displaced by the immersed part of the body. And, this point is called the centre buoyancy. Further, this chapter also includes in it the most popular Archimedes Principles and the Laws of Floatation. Apart from that, the lessons in this chapter also explain Density and Relative Density in detail.

### Exercise Discussion of NCERT Solutions for Class 11 Physics Chapter 10

• There are 20 questions in the first NCERT exercise of Class 11 Physics Chapter 10.
• Questions 1, 2 and 4 are theory-based questions with sub-parts. You need to provide clear explanations on topics like atmospheric pressure, water, and properties of fluids.
• Question 3 is a Fill in the Blanks type question with 5 sub-parts. It will help you quickly revise the main points of the chapter.
• Then, the rest of the questions are numerical type questions that require you to apply the laws and formulae that you have learned in the chapter.
• The second exercise of NCERT Solutions for Class 11 Physics Chapter 10 includes 11 questions. All the questions are of advanced level.

### Benefits of NCERT Solutions for Class 11 Physics Chapter 10 by Instasolv

From now, Chapter 10 on Fluids Mechanics will no more trouble you as we have included answers to all of its exercise questions. We understand that sometimes it is difficult to solve every question on your own. So, our subject matter experts have created the best and easiest solutions for you. Read them anytime and start learning the chapter to score better marks in the exams.

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