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JEE Main & Advanced Physics NLM, Friction, Circular Motion Question Bank Static and Limiting Friction

  • question_answer
    Which one of the following is not used to reduce friction                     [Kerala (Engg.) 2001]

    A)             Oil      

    B)             Ball bearings

    C)             Sand   

    D)             Graphite

    Correct Answer: C

    Solution :

                    Sand is used to increase the friction.


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