
A viscous fluid is flowing through a cylindrical tube. The velocity distribution of the fluid is best represented by the diagram.
A. 
B. 
C. 
D. None of the above
Answer
162.6k+ views
Hint: The property of a fluid that opposes the relative motion between its different layers is known as viscosity. The force that opposes relative motion between the different layers is known as viscous force.
Complete step by step solution:
Here are three diagrams we have. If we consider the first diagram, it represents the viscous liquid. Viscous liquid means there is a viscous force between the layers of the liquid. The viscous force is comparatively more between solid and liquid layer and as the layers increases in the middle comparatively, the viscous force is less. So, the first option is wrong.
When we consider the second option, near the solid surface, the component of the velocity is more the length is more, and in the middle, the component of velocity is comparatively less. This is also not possible here, at the surface viscous force is more and, in the middle, it is less. Where the viscous force is less there the velocity should be more, but here it is represented as less. Here, the third option represents that, when the viscous force is less, velocity is more and vice versa.
Hence, option C is the correct answer.
Note: Remember that the viscous force and frictional force are similar, but they are not the same. In a moving fluid, the fluid consists of multiple layers. As compared to the neighboring layers each layer has a noticeable difference in speed. This force, called the frictional force, decreases the relative motion between the layers. Viscous force is defined as the force that acts between two layers of a moving fluid.
Complete step by step solution:
Here are three diagrams we have. If we consider the first diagram, it represents the viscous liquid. Viscous liquid means there is a viscous force between the layers of the liquid. The viscous force is comparatively more between solid and liquid layer and as the layers increases in the middle comparatively, the viscous force is less. So, the first option is wrong.
When we consider the second option, near the solid surface, the component of the velocity is more the length is more, and in the middle, the component of velocity is comparatively less. This is also not possible here, at the surface viscous force is more and, in the middle, it is less. Where the viscous force is less there the velocity should be more, but here it is represented as less. Here, the third option represents that, when the viscous force is less, velocity is more and vice versa.
Hence, option C is the correct answer.
Note: Remember that the viscous force and frictional force are similar, but they are not the same. In a moving fluid, the fluid consists of multiple layers. As compared to the neighboring layers each layer has a noticeable difference in speed. This force, called the frictional force, decreases the relative motion between the layers. Viscous force is defined as the force that acts between two layers of a moving fluid.
Recently Updated Pages
JEE Atomic Structure and Chemical Bonding important Concepts and Tips

JEE Amino Acids and Peptides Important Concepts and Tips for Exam Preparation

JEE Electricity and Magnetism Important Concepts and Tips for Exam Preparation

Chemical Properties of Hydrogen - Important Concepts for JEE Exam Preparation

JEE Energetics Important Concepts and Tips for Exam Preparation

JEE Isolation, Preparation and Properties of Non-metals Important Concepts and Tips for Exam Preparation

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility, & More

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Displacement-Time Graph and Velocity-Time Graph for JEE

Degree of Dissociation and Its Formula With Solved Example for JEE

Electric Field Due to Uniformly Charged Ring for JEE Main 2025 - Formula and Derivation

Charging and Discharging of Capacitor

Other Pages
JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

NCERT Solutions for Class 11 Physics Chapter 1 Units and Measurements

Units and Measurements Class 11 Notes: CBSE Physics Chapter 1

Motion in a Straight Line Class 11 Notes: CBSE Physics Chapter 2

Important Questions for CBSE Class 11 Physics Chapter 1 - Units and Measurement

NCERT Solutions for Class 11 Physics Chapter 2 Motion In A Straight Line
