NEET2018Physics-Friction
NEET 2018 Physics Types of Friction MCQ Question
Type: MCQ-conceptual-Easy-Class 11
Which one of the following statements is incorrect?
A
Rolling friction is smaller than sliding friction.
B
Limiting value of static friction is directly proportional to normal reaction.
C
Frictional force opposes the relative motion.
D
Coefficient of sliding friction has dimensions of length.
Correct Answer
Option B
Detailed Explanation
The coefficient of friction is dimensionless; it does not have dimensions of length.
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