A

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Q. Which of these is the cause of Friction?

  • (A) Roughness of surfaces in contact
  • (B) Force of adhesion between the molecules of the surfaces in contact
  • (C) Both a and b
  • (D) None of the above
  • Correct Answer - Option(C)
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Explanation by: Admin

Friction is the force that opposes the relative motion between the two surfaces of objects in contact. Friction is caused due to: 1. Roughness of surfaces in contact 2. Force of adhesion between the molecules of the surfaces in contact

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