Question

why the handle of a cricket bat is usually rough?

Answer 1

it is rough bcoz if it has been slippery than the friction will be less and crickters will not be able to make a grip on the bat as a result they will not be able to play properly.

Answer 2

the handle of a cricket bat is usually rough to increase the friction to make a strong grip so that it doesn't slip out in the hand of the cricketer while batting.