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NIELIT
O Level Exam
Friction can be increased by
Friction can be increased by
A.
applying oil
B.
moisture on the surfaces
C.
rough surfaces
D.
all of these.
Correct Answer is :
C. rough surfaces
Explanation
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. Friction can be increased by rough surfaces
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