Multiple choice

Which of the following will produce maximum friction?

  1. If one rubs sand paper on a polished marble top

  2. If one rubs sand paper on a glass top

  3. If one rubs sand paper on another sand paper

  4. If one rubs sand paper on a wet floor

  5. If one rubs sand paper on an aluminium frame
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option. The friction produced will be maximum if one rubs sand paper on another sand paper because both the surfaces are rough and on rough surfaces, friction is maximum.

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