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Surface Irregularities

is due to pre...

Question

is due to presence of irregularities on a surface.

A

Softness

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B

Hardness

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C

Roughness

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D

Smoothness

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Solution

The correct option is C Roughness
Surface roughness is due to irregularities present on a surface. When two rough surfaces are in contact, these irregularities interlock and resist slipping between the surfaces.

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Q. Assertion :Frictional force is independent of the velocity of the body. Reason: Friction is due to surface irregularities.

Q. Statement 1: Two smooth surfaces generally offer friction due to adhesion.

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Which of these statement is correct?

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