In Physics classroom, a teacher told to his students that when a cricket player want to catch a ball then first he rub the hands. Thus, there is less chance of slipping the ball from hands.
(a) Explain the reason of not slipping of ball from hand.
(b) If the player makes his hands oily instead of rubbing them, would he be able to catch the ball?
(c) Mention the type of teaching skills of teacher is being represented here.