The matchbox sides are made so rough in order to ___________ .

eliminate friction

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increase friction

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decrease friction

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hold matchsticks easily

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Solution

The correct option is B increase friction
Friction on a surface can be increased by increasing the roughness of the surface. When a matchstick is rubbed against the rough surface of the matchbox, a sparkle is produced. This is caused due to the large amount of friction produced between the surface of matchstick and matchbox.

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