
Frictional force is more between which type of surface?
A) Smooth
B) Rough
C) Both A and B
D) None of the above
Answer
137.1k+ views
HintThe force of friction is the force that opposes or resists the motion of a body. The surface which does not allow the motion smoothly will have more frictional force.
Complete step by step solution:
Given the two surfaces are different. One is smooth and another is rough. They have different surfaces. The rough surface will have many irregular patterns on its surface making it rough. The movement through the rough surface is difficult. It will not allow a smooth motion. The friction is greater in the rough surfaces.
The expression for the frictional force is given as,
$F = \mu N$
Where, $\mu $ is the coefficient of friction and $N$ is the normal force acting between the body and the surface.
The direction of the frictional force is always opposite to the motion of the body. That’s why it resists the motion. Frictional force can slow down the movement.
If the same normal force is applied to both the smooth and rough surfaces, the coefficient of friction determines the frictional force. The coefficient of friction is greater for the rough surfaces hence they have irregularities on their surface. And for smooth surfaces the coefficient of friction is less. So the rough surface would have more frictional force than a smooth surface.
Thus, the answer is option B
Note We have to notice on which surface the body slides smoothly. If the body slides very smoothly then the friction between the surface and surface of the body is less. Thus the frictional force is less.
Complete step by step solution:
Given the two surfaces are different. One is smooth and another is rough. They have different surfaces. The rough surface will have many irregular patterns on its surface making it rough. The movement through the rough surface is difficult. It will not allow a smooth motion. The friction is greater in the rough surfaces.
The expression for the frictional force is given as,
$F = \mu N$
Where, $\mu $ is the coefficient of friction and $N$ is the normal force acting between the body and the surface.
The direction of the frictional force is always opposite to the motion of the body. That’s why it resists the motion. Frictional force can slow down the movement.
If the same normal force is applied to both the smooth and rough surfaces, the coefficient of friction determines the frictional force. The coefficient of friction is greater for the rough surfaces hence they have irregularities on their surface. And for smooth surfaces the coefficient of friction is less. So the rough surface would have more frictional force than a smooth surface.
Thus, the answer is option B
Note We have to notice on which surface the body slides smoothly. If the body slides very smoothly then the friction between the surface and surface of the body is less. Thus the frictional force is less.
Recently Updated Pages
How to find Oxidation Number - Important Concepts for JEE

How Electromagnetic Waves are Formed - Important Concepts for JEE

Electrical Resistance - Important Concepts and Tips for JEE

Average Atomic Mass - Important Concepts and Tips for JEE

Chemical Equation - Important Concepts and Tips for JEE

Concept of CP and CV of Gas - Important Concepts and Tips for JEE

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

A body crosses the topmost point of a vertical circle class 11 physics JEE_Main

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Learn About Angle Of Deviation In Prism: JEE Main Physics 2025

Degree of Dissociation and Its Formula With Solved Example for JEE

At which height is gravity zero class 11 physics JEE_Main

Other Pages
Units and Measurements Class 11 Notes: CBSE Physics Chapter 1

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

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 1 Units and Measurements

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