JEE Main 202427 JanuaryEvening Shift
- Exam
- JEE Main
- Year
- 2024
- Date
- 27 January
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Laws of Motion
JEE Main 2024 · 27 January · Evening Shift · Physics · Laws of Motion
Given below are two statements : Statement (I) : The limiting force...
Given below are two statements :
Statement (I) : The limiting force of static friction depends on the area of contact and independent of materials.
Statement (II) : The limiting force of kinetic friction is independent of the area of contact and depends on materials.
In the light of the above statements, choose the most appropriate answer from the options given below :
Statement (I) : The limiting force of static friction depends on the area of contact and independent of materials.
Statement (II) : The limiting force of kinetic friction is independent of the area of contact and depends on materials.
In the light of the above statements, choose the most appropriate answer from the options given below :
Options
- AStatement I is correct but Statement II is incorrect
- BStatement I is incorrect but Statement II is correct
- CBoth Statement I and Statement II are incorrect
- DBoth Statement I and Statement II are correct
Correct answer
B. Statement I is incorrect but Statement II is correct
Step-by-step solution
The limiting force of static friction depends on both the normal force and the coefficient of static friction, but it does not depend on the area of contact.
The force of kinetic friction is indeed dependent on the nature of the materials in contact and the normal force, but not on the area of contact.
Hence, Statement I is incorrect but Statement II is correct.