Q. When two surfaces are coated with a lubricant, then they
A) Stick to each other
B) Slide upon each other
C) Roll upon each other
D) None of these
Explanation
(b) Surfaces always slide over each other
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.