Which of the following is/are not way(s) to reduce friction?
(i) Use of lubricants
(ii) Changing the sliding friction to rolling friction
(iii) Increasing roughness of the surfaces
A(i) only
B(i) and (ii) only
C(ii) only
D(iii) only
Which of the following is/are not way(s) to reduce friction?
(i) Use of lubricants
(ii) Changing the sliding friction to rolling friction
(iii) Increasing roughness of the surfaces
A(i) only
B(i) and (ii) only
C(ii) only
D(iii) only