Question

Which of the following helps to increase friction?

• A. Only (i) and (ii)
• B. Only (ii) and (iii)
• C. Only (i) and (iii)
• D. (i), (ii) and (iii)

Answer 1

The correct option is C Only (i) and (iii)

Friction opposes the relative motion between two surfaces in contact. It acts on both surfaces. Friction depends on the nature of surfaces in contact. Friction can be increased by making a surface rough. Friction depends on how hard the two surfaces are pressed together. Therefore, friction can be increase by increasing the weight of objects.