Question

Arrange the following surfaces in increasing order of surface roughness:

• A. Wooden < Metal < Cloth
• B. Metal < Wooden < Cloth
• C. Cloth < Metal < Wooden
• D. Wooden < Clock < Metal

Answer 1

The correct option is B Metal < Wooden < Cloth

Metal surface is the most smooth surface among the given surfaces because it has the least number of irregularities followed by wooden surface and cloth surface respectively. If we throw a ball with same speed on all these surfaces, the ball will move farthest on the metal surface because it offers the least friction.