A rougher surface will have

Same friction as compared to a smoother one.

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Less friction as compared to a smoother one.

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Higher friction as compared to a smoother one.

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No friction.

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Higher friction as compared to a smoother one.

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Solution

The correct option is E
Higher friction as compared to a smoother one.

A rougher surface will have more irregularities as compared to a smooth surface and hence more inter-locking. It has higher friction than a smooth surface and higher amount of force has to be applied.

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